A bag contains 1 rupee, 2 rupee and 5 rupee coins whose values are in the proportion of 3 : 4 : 15 . If the total numbers of coins are 320 then find the number of 2 rupee coins.
Answer & explanation
Correct answer: option 2
1Rs. 2 Rs. 5 Rs.
Value 3 : 4 : 15
↓ ↓ ↓
No. 3 : 2 : 3
Total = 8R
8R = 320 ( given)1R = 40
Number of 2 rupee coins = 2R = 2 × 40 = 80