Comparing Quantities Test

Result

Comparing Quantities Test - 5

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Weekly Quiz Competition

Question 1
1 / -0

If 2 1/2 of a number is 0.2, what will be 120% of it?

A
10.8

B
4.8

C
9.6

D
12.4

Solution

Let the number be x.

2 1/2

of x=0.2

⇒ x=0.2×200/5 = 8 ⇒ 120

of

8=120/100×8=9.6
Question 2
1 / -0

The sides of a triangle are in ratio 4:5:9 if its perimeter is 72 cm, its longest side is

A
36 cm

B
40 cm

C
32 cm

D
45 cm

Solution

Total Parts=4+5+9=18 {Perimeter of triangle = Sum of all sides = 72 cm} One Part=72/18 = 4cm Longest side= 9×4cm = 36cm
Question 3
1 / -0

A boy has enough money to buy 20 books. If each book costs 25 paise less, he could buy two more books and still have 70 paise left. How much money does the boy have?

A
Rs.16

B
Rs.24

C
Rs.48

D
Rs.36

Solution

Let the original cost of each book be Rs.x. According to the problem,

20×x =22x−5.5+0.70 ⇒ x=Rs.2.40 ∴

The boy had

20×Rs.2.40

= Rs. 48 to buy books
Question 4
1 / -0

Value of x in Proportion 2:3::4:x is

A
8

B
12

C
6

D
16

Solution

2/3=4/x ⇒ 2x=12 ; x =12/2=6