15. Mohini save 400 from her salary. If this is 10% of her salary, then what is the
salary?
16. 16% of the apples in a basket go bad. If there are 42 good apples in the basket, fint
the total number of apples in the basket.
17. In an examination, a student has to secure 45% marks to pass the exam. If Varungi
251 marks and failed by 19 marks, what are the maximum marks?
Answers
Answer:
15. 4000
16. 50
17. 600
Step-by-step explanation:
15. If 400 is 10%
10% = 400
100% = x
x= (400x100)÷ 10
x= 4000
16. 16% of apples go bad
still 84% of apple in basket ie.,) 42
84%=42
100%=x
x=(100x42)÷ 84
x=50
17. student has to secure 45% to pass
varungi secured 251 and failed by 19 marks
so 45% of pass mark = 251+19= 270
45%=270
100%=x
x=(100x270)÷45
x=600
Answer:
15. 4000 rs. 16. 50 apples 17. 600 marks
Step-by-step explanation:
15. Let 400 is 10% of x
then
x*10/100=400
x=400*100/10
x= 4000 rs
16. % of bad apple= 16
a % is of 100
so the % of good apple=100-16=84
Let total apple be x
acc.to que 42 apples are good so
x*84/100=42
x= 42*100/84
x=50 apples
17. varun gets marks =251
he failed by marks =19
so for passing he wants = 251+19=270 marks
Let max. marks be x
acc. to que 45% of x is passing marks so
x*45/100=270
x= 270*100/45
= 600 marks