Question

12. A student in a school pays Rs 3 as a fund. If the amount collected is Rs 406,
find the number of students in the school.
13. What number should be subtracted from – to get?
14. What should be added to [ +3 to get - ?
15.7, when multiplied by x, gives the product as 1, Which fraction does x represent?


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Answer 1

Answer:

1. First make 3 1/5 into a proper fraction=16/5=3.2

then make 406 2/5 into a proper fraction=817/5=163.4

If 1 student pays Rs.3.2

X students will pay Rs.163.4

1=3.2

X=163.4

so,X will be = 163.2/3.2

which will be = 51

2. Let Number be x.

Given 5-x = 18/13

=> 5-18/13 = x

=> 65-18/13= x

=> 47/13 = x.

Therefore 47/13 should be subtracted from 5 to get 18/13.

Answer 2

Answer:

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