ratio proportion and partnership Model Questions & Answers, Practice Test for ssc chsl tier 1 2023

Answer: (a)

$?/84=189/?$

or $?^2$ = 84 × 189

or $?^2$ = 21 × 4 × 21 × 9

or $?^2 = 21^2 × 2^2 × 3^2$

∴ ? = 21 × 2 × 3 = 126

Answer: (b)

4 leaps of hound = 5 leaps of hare

∴ 5 leaps of hound = ${25}/4$ leaps of hare

∴ the rate of hound : rate of hare = ${25}/4$ : 6 = 25 : 24

Or,

Then the required ratio of speed is the ratio of the cross product.

That is, speed of hound : speed of hare

= 5 × 5 : 6 × 4 = 25 : 24

Answer: (a)

Let Age of A = 3x

Age of B = x

∴${3x + 15}/{x + 15}$ = $2/1$

3x + 15 = 2x + 30

x = 15

∴Present Age of A = 45 years

Present Age of B = 15 years

Answer: (b)

28% are married it implies that 72% are unmarried.

Ratio = 28 : 72

= 7 : 18

Answer: (b)

Ratio of equivalent capitals of A, B and C for 1 month

= 35000 × 12 : 20000 × 5 : 15000 × 7

= 35 × 12 : 20 × 5 : 15 × 7 = 84 : 20 : 21

Sum of the ratios = 84 + 20 + 21 = 125

∴ B's share = Rs.$({{20}/{125}} × 84125)$ = Rs. 13460