Math, asked by Harshita4885, 11 months ago

A sum of Rs. 36.90 is made up of 180 coins which are either 10 paise coins or 25 p coins. The number of 10 p coins is: ( A ) 48 ( B ) 54 ( C ) 56 ( D ) 60

Answers

Answered by rohan1303
1

Answer:

let number of 10 paise be x

let number of 25 paise be y

10x + 25y = 3690

x + y = 180

by elimination method

10x + 25y = 3690

x. + y. = 180× 10

10x + 25y = 3690

10x + 10y = 1800

-. -

15y= 1890

y = 126

x= 54

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