Why Paytm IPO Failed ?

Change the given sentence into indirect speech. His father said to her, "Why have you failed in the examination ?"

Why Students Fail in MATHS EXAM ?

In an examination, 52% candidates failed in English and 42% failed in Mathematics. If 17% failed in both the subjects, then what percent passed in both the subjects ?

In an examiniation 55% of the students failed in chemistry, 47% failed in physics and 23% failed in both, find the pass percentage of the class.

In an examination of a certain class,at least 70% of the students failed in Physics,at least 72% failed in Chemistry,at least 80% failed in Mathematics and at least 85% failed in English.How many at least must have failed in all the four subjects?

In an examination of a certain class, at least 70% of the students failed in Physics, at least 72% failed in Chemistry, at least 80% failed in Mathematics and at least 85% failed in English. How many at least must have failed in all the four subjects ?