App Logo

No.1 PSC Learning App

1M+ Downloads

A purse contains 1 rupee, 50 paise and 25 paise coins in the ratio 7:8:9. If the total money in the purse is 159. The number of 50 paise coins in the purse will be :

A96

B84

C82

D86

Answer:

A. 96

Read Explanation:

Ratio of number of coins,

1Rs : 50p : 25p = 7 : 8 : 9

Let the total value of 1Rs coin is =7x×1=7x=7x\times{1}=7x

Total Value of 50p coin =8x×12=8x2=4x=8x\times{\frac{1}{2}}=\frac{8x}{2}=4x

Total Value of 25p coin =9x×14=9x4=9x\times{\frac{1}{4}}=\frac{9x}{4}

Total Amount =7x+4x+9x4=159=7x+4x+\frac{9x}{4}=159

=>\frac{28x+16x+9x}{4}=159

=>53x=159\times{4}

=>x=3\times{4}

=>x=12

No. of 50p coins =8x=8×12=96=8x=8\times{12}=96


Related Questions:

In a school, the ratio of boys and girls is 4:5. When 100 girls leave the school, the ratio becomes 6:7. How many boys are there in the school?

2 : 11 : : 3 : ?

The ratio of the first and second class fares between two railway stations is 4:1 and that of the number of passengers travelling by first and second classes is 1:40. If on a day R.s 1,100 are collected as total fare, the amount collected from the first class passengers is

ഒരു ത്രികോണത്തിലെ കോണുകളുടെ അംശബന്ധം 2:3:4 ആയാൽ വലിയ കോണിൻറെ അളവ് എന്ത്?

രണ്ടു സംഖ്യകൾ 2:3 എന്ന അനുപാതത്തിലാണ്. ഇവയിൽ ഓരോന്നിൽ നിന്നും 5 കുറച്ചാൽ അവ 3 : 5 എന്ന അനുപാതത്തിൽ ആവും. എങ്കിൽ ആദ്യത്തെ സംഖ്യ കണ്ടെത്തുക