A bag contains Rs5 and Rs10 coins for a total of 40 coins and a total amount of Rs310 What is the di...........

Quantitative Aptitude (MTS) Ratio, Proportion

A bag contains Rs5 and Rs10 coins for a total of 40 coins and a total amount of Rs310. What is the difference between the amount

made up of all Rs10 coins and the amount made up of all Rs5 coins?

This questions was previously asked in

SSC MTS 8th July 2022 Shift-1

Rs125

Rs120

Rs110

Rs130

Let’s break it down:

- We have 40 coins total: some Rs5, some Rs10.

- The combined value is Rs310.

- Let the number of Rs5 coins be x, so the Rs10 coins are 40-x.

- The equation: 5x + 10(40-x) = 310

- Simplify: 5x + 400 - 10x = 310 ? -5x = -90 ? x = 18

- So, there are 18 Rs5 coins and 22 Rs10 coins.

- Value from Rs5 coins: 18 × 5 = Rs90

- Value from Rs10 coins: 22 × 10 = Rs220

- The difference: 220 - 90 = Rs130

So, here’s what this means:

- Option 1: Rs125

- Option 2: Rs120

- Option 3: Rs110

- Option 4: Rs130

. The correct difference is Rs130 (Option 4).

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