Question

10. Two-fifths of thirty per cent of one-fourth of a number is 15. What is 20 per cent of that number? (b) 150 (c) 100 (d) 120​

Answer 1

Answer:

100

Step-by-step explanation:

1/4 X 2/5 X 30/100x = 15

=> 3x/100=15

=>x= 15X100/3 =500

20% of 500

20/100 X 500 = 100