CBSE Questions for Class 8 Maths Linear Equations In One Variable Quiz 4 - MCQExams.com

What should be subtracted from $$\displaystyle\left(\displaystyle\frac{3}{4}-\frac{2}{3}\right)$$ to get $$\displaystyle\frac{-1}{6}$$?
  • $$\displaystyle -\frac{6}{13}$$
  • $$\displaystyle\frac{1}{4}$$
  • $$\displaystyle\frac{2}{7}$$
  • $$\displaystyle -\frac{1}{8}$$
Solve for $$x$$:
$$\dfrac {9x}{7-6x}=15$$
  • $$\dfrac{99}{105}$$
  • $$-\dfrac{105}{99}$$
  • $$\dfrac{105}{99}$$
  • $$-\dfrac{99}{105}$$
The sum of three consecutive multiples of $$11$$ is $$363$$. Find these multiples.
  • $$110,121,132$$
  • $$99,77,187$$
  • $$110,99,154$$
  • none
One-third of one half of one-fifth of a number is $$15$$ then the number is 
  • $$50$$
  • $$150$$
  • $$15$$
  • $$450$$
If $$ \cfrac { 5.6(x+3) }{ 0.7 } =24, $$ then the value of $$x$$ is
  • $$0$$
  • $$1$$
  • $$2$$
  • $$3$$
If $$\sqrt { 1+\dfrac { x }{ 289 }  } =1\dfrac { 1 }{ 17 }$$ then $$x=$$
  • $$1$$
  • $$13$$
  • $$35$$
  • $$15$$
Find three consecutive numbers whose sum is $$108$$.
  • $$35, 46, 37$$
  • $$5, 36, 37$$
  • $$35, 36, 37$$
  • None of these
Solve for $$x$$:-
$$\dfrac{{2x - 1}}{2}\,\,\, - \dfrac{{x + 3}}{3}\,\, = \dfrac{{x - 2}}{5}$$
  •  $$x=\dfrac{5}{14}$$
  •  $$x=\dfrac{3}{14}$$
  •  $$x=\dfrac{33}{14}$$
  • None of these
If $$4$$ more than twice a number is $$6$$ less than that number then what is the number?
  • $$2$$
  • $$-10$$
  • $$10$$
  • $$16$$
If you subtract $$\cfrac{1}{2}$$ from a number and multiply the result by $$\cfrac{1}{2}$$, you get $$\cfrac{1}{8}$$. The number obtained is 
  • $$\dfrac 39$$
  • $$\dfrac 34$$
  • $$\dfrac {3}{13}$$
  • $$\dfrac 32$$
Half of a herd of deer are grazing in the field and three fourths of the remaining are playing nearby. The rest 9 are drinking water from the pond. Find the number of deer in the herd.
  • 65
  • 36
  • 72
  • 74
It costs Rs. $$10$$/kilometer to fly and Rs. $$2$$/kilometer to drive. If one travels $$200$$ km covering $$x$$ km of the distance by flying and the rest by driving, then the cost of the trip is
  • Rs. $$2,000$$
  • Rs. $$24,000$$
  • Rs.$$ (8x + 400)$$
  • Rs. $$(12x + 400)$$
Baichungs father is $$26$$ years younger than Baichungs grandfather and $$29$$ years older than Baichung. The sum of the ages of all the three is $$135$$ years. What is the age of each one of them?
  • Baichungs age: 14 years; Baichungs fathers age: $$28$$ years; Baichungs grandfathers age $$= 42$$ years
  • Baichungs age: $$17$$ years; Baichungs fathers age: $$46$$ years; Baichungs grandfathers age $$= 72$$ years
  • Baichungs age: $$16$$ years; Baichungs fathers age: $$38$$ years; Baichungs grandfathers age $$= 52$$ years
  • Baichungs age: $$25$$ years; Baichungs fathers age: $$58$$ years; Baichungs grandfathers age $$= 82$$ years
The present ages of a father and his son are in the ratio $$7 : 3$$ and the ratio of their ages will be $$2 : 1$$ after $$10 $$ years. Then, the present age of father (in years) is
  • $$42$$
  • $$56$$
  • $$70$$
  • $$77$$
The ages of Rahul and Haroon are in the ratio $$5:7$$. Four years later the sum of their ages will be $$56$$ years. What is the present age of rahul?
  • $$14$$
  • $$18$$
  • $$20$$
  • $$11$$
Lakshmi is a cashier in a bank. She has currency notes of denominations Rs. $$100$$, Rs. $$50$$ and Rs. $$10$$, respectively. The ratio of the number of these notes is $$2:3:5$$. The total cash with Lakshmi is Rs. $$4,00,000$$. How many notes of each denomination does she have?
  • Rs. $$100$$ $$\rightarrow 2000$$ notes; Rs. $$50 \rightarrow  3000$$ notes; Rs. $$10 \rightarrow 5000$$ notes
  • Rs. $$100 \rightarrow 1500$$ notes; Rs. $$50 \rightarrow 2000$$ notes; Rs. $$10\rightarrow 3000$$ notes
  • Rs. $$100 \rightarrow 1000$$ notes; Rs. $$50 \rightarrow 2500$$ notes; Rs. $$10 \rightarrow 4000$$ notes
  • Rs. $$100 \rightarrow 3000$$ notes; Rs. $$50 \rightarrow  2000$$ notes; Rs. $$10 \rightarrow  4000$$ notes
One of the two digits of a two digit number is three times the other digit. If you interchange the digits of this two-digit number and add the resulting number to the original number, you get $$88$$. What is the original number?
  • $$26$$
  • $$12$$
  • $$43$$
  • $$16$$
The sum of three non-zero prime numbers is $$100$$. One of them exceeds the other by $$36$$. Then the largest number is
  • $$73$$
  • $$91$$
  • $$67$$
  • $$57$$
Three consecutive integers are such that when they are taken in increasing order and multiplied by $$2, 3$$ and $$4$$ respectively, they add up to $$74$$. Find these numbers.
  • $$4, 5, 6$$
  • $$5, 6, 7$$
  • $$8, 9, 10$$
  • $$7, 8, 9$$
The sum of three consecutive odd numbers is $$57$$. Find the numbers.
  • $$17, 19$$ and $$21$$
  • $$19, 15$$ and $$25$$
  • $$13, 17$$ and $$26$$
  • $$21, 13$$ and $$29$$
Three consecutive whole numbers are such that if they be divided by $$5, 3$$ and $$4$$ respectively; the sum of their quotients is $$40$$. Find the numbers.
  • $$20, 35$$ and $$22$$
  • $$50, 51$$ and $$52$$
  • $$40, 11$$ and $$25$$
  • $$5, 5$$ and $$8$$
A person travelled $$\displaystyle \frac{5}{8}$$th of the distance by train  $$\displaystyle \frac{1}{4}$$th by bus and the remaining 15 km by boat .The total distance travelled by him was 
  • $$90$$ km
  • $$120$$ km
  • $$150$$ km
  • $$180 $$km
A student was asked to divide a number by $$6$$ and add $$12$$ to the quotient. He, however, first added $$12$$ to the number and then divided it by $$6$$, getting $$112$$ as the answer. The correct answer should have been.
  • $$122$$
  • $$118$$
  • $$114$$
  • $$124$$
The sum of the digits of a two digit number is $$ 6$$  and its ten's digit is twice its unit digit. Find the number.
  • $$58$$
  • $$20$$
  • $$42$$
  • $$76$$
Separate $$178$$ into two parts so that the first part is $$8$$ less than twice the second part.
  • $$126$$ and $$42$$
  • $$176$$ and $$102$$
  • $$126$$ and $$82$$
  • $$116$$ and $$62$$
The ten's digit of a two digit number is three times the unit digit. The sum of the number and the unit digit is $$32$$. Find the number. 
  • $$31$$
  • $$12$$
  • $$19$$
  • $$39$$
Twice a number is decreased by $$15$$, equals $$25$$. Find the number.
  • $$20$$
  • $$25$$
  • $$30$$
  • $$35$$
$$28$$ is $$12$$ less than $$4$$ times a number. Find the number.
  • $$10$$
  • $$12$$
  • $$14$$
  • $$8$$
AB is a segment. The point P is on the perpendicular bisector of segment AB such that length of AP exceeds length of AB by $$7 $$ cm. If the perimeter of $$\Delta ABP$$ is  $$38$$ cm. Find the sides of $$\Delta ABP$$ .
  • $$5$$cm, $$12$$cm and $$19$$cm
  • $$8$$cm, $$15$$cm and $$15$$cm
  • $$2$$cm, $$17$$cm and $$ 11$$cm
  • $$6$$ cm, $$14$$cm and  $$18$$cm
If Megha's age is increased by three times her age, the result is 60 years. Find her age. 
  • $$11$$ years
  • $$20$$ years
  • $$15$$ years
  • $$19$$ years
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Class 8 Maths Quiz Questions and Answers