Question

Bansi has 3 times as many rs. 2 coins as he has rs. 5 coins. If he has in all a sum of rs. 77, how many coins of rs. 2 does he have?

Answer 1

Question : Bansi has 3 times as many rs. 2 coins as he has rs. 5 coins. If he has in all a sum of rs. 77, How many coins of rs. 2 does he have?

Step-by-step explanation:

Given :

Number of 2 rupees coins = 21

Number of 2 rupees coins = 21 Number of 5 rupees coins = 7

Let the number of 5 rupees coins = A

Let the number of 2 rupees coins = B

we know that :

Amount of 5 rupees coin will make = 5A

Amount of 2 rupees coin will make = 3B

Number of 2 rupees coin =  

$3 \times 5$

So , number of 2 rupees coins = 3A

So , number of 2 rupees coins = 3A Number of 5 rupees coin = A

According To problem

Total amount = 2( 3A ) + 5A = 11A

Now let's equate the amount which 11A

= 77

Therefore ,

A = 7

We know that :

The number of 2 rupees coin = 3A

The Number of 5 rupees coin = A

Now let's insert the value of A :

Number of 2 rupees coins = 3 (7) = 21

Number of 2 rupees coins = 3 (7) = 21Number of 5 rupees coins = 7