EASY

CAT

IMPORTANT

Earn 100

A is an alloy of tin and copper, and B is an alloy of copper and zinc. A has $30 %$ copper, whereas B has $50 %$ copper. $x gm$ of A is mixed with $30 gm$ of B to form another alloy that has $45 %$ copper. What is the value of $x$ ?

50% studentsanswered this correctly

Important Questions on Arithmetic

MEDIUM

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 42

After three successive raises, Aftab's salary became equal to

\frac{378}{125}

of his initial salary. By what percentage was the salary raised the first time if the third rise was twice as high (in percentage) as the second rise and the second raise was twice as high (in percentage) as the first rise?

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 45

There are

110, 000

books at Khuda Bakhsh Oriental Public Library,

40 %

of which are Science books. It was decided to add

20, 000

new books to the library. How many of the new books should be Science books in order to bring the percentage of Science books in the library equal to

45 %

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 46

33

untrained labourers can do a piece of work in

15

days of

12

hours each, then how many trained labourers can do

50 %

more work in

11

days of

9

hours each? (Assuming that it takes

2

trained labourers to do the work of

5

untrained labourers.)

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 47

X's income is

75 %

of Y's income, and X's expenditure is

80 %

of Y's expenditure. lf X's income is

90 %

of Y's expenditure, then find the ratio of X's savings to Y's savings.

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 48

Kajol went to a fruit market with a certain amount of money. With the money she has, she can buy either

40

apples or

70

mangoes. She retains

15 %

of her money for auto fare. If she buys

35

mangoes, how many more apples can she buy?

MEDIUM

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 49

In an election for the post of class representative at Pitampura Centre where two candidates were contesting,

10 %

of the students did not vote (because they were late, as usual) and

60

votes recorded were declared invalid (because stray marks were made on the ballot paper). Winning candidate won the election by

308

votes and it was found that he had been supported by

47 %

of the whole students of the class. What is the the number of valid votes recorded for each candidate?

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 4

Assuming percentage to be true for all the real values, which of the following can be true?

$40 %$ of $A = 60 %$ of $B$

(i) $A > B$

(ii) $B > A$

(iii) $B = A$

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 2 - Arithmetic>Practice Exercises>Q 9

A manufacturer of detergent cakes increased the price of his product, and as a result of which, there was a decrease of

20 %

in its sales. If the sales turnover increases by

20 %

due to this change, then what was the percentage increase in the price?

A is an alloy of tin and copper, and B is an alloy of copper and zinc. A has 30% copper, whereas B has 50% copper. x gm of A is mixed with 30 gm of B to form another alloy that has 45% copper. What is the value of x?

Important Questions on Arithmetic

Learn and Prepare for any exam you want !

A is an alloy of tin and copper, and B is an alloy of copper and zinc. A has $30 %$ copper, whereas B has $50 %$ copper. $x gm$ of A is mixed with $30 gm$ of B to form another alloy that has $45 %$ copper. What is the value of $x$ ?