Question

1. Radhika spends Rs 350 every month. If this is 70% of her pocket money, find her pocket money.
2. In a family of 25 persons, 72% read English newspaper, 16% read Hindi newspaper and the rest so not read the newspaper. Find the number of persons who read none of the newspapers.

Answer 1

SOLUTION :

$\boxed{\boxed{\underline{\underline{\bf Answer 1.}}}}$

Let Radhika's pocket money = Rs a

The money spent by Radhika = Rs 350

Also money spent is = 70% of a

Therefore,

70% of a = 350

$\bf \rightarrow \frac{70}{100} \times a = 350\\\\\rightarrow a =\frac{350\times100}{70}\\\\\rightarrow a = 500$

Hence,

Radhika's pocket money is Rs 500.

 

                                                    

     

$\boxed{\boxed{\underline{\underline{\bf Answer 2.}}}}$

Number of persons who read English newspaper = 72% of 25

$\bf =\frac{72}{100}\times25\\\\\bf=18$

Number of persons who read Hindi newspaper = 16% of 25

$\bf =\frac{16}{100}\times 25\\\\\bf =4$

Therefore,

Number of persons who do not read any of the two newspaper = 25 - (18+4) = 3 persons

Hence,

3 persons read none of the newspapers.

Answer 2

Step-by-step explanation:

1)500,2)4 it is ch-5 CBCE Board