Challenger App

No.1 PSC Learning App

1M+ Downloads
What is the third proportional to 28 and 112?

The mean proportion of a2b3and9b24a3\frac{a^2}{b^3} and \frac{9b^2}{4a^3} is _________.

Ashish has ₹1617 with him. He divided it amongst his sons Arun and Mahesh and asked them to invest it at 10% rate of interest compounded annually. It was seen that Arun and Mahesh got same amount after 14 and 15 years respectively. How much (in ₹) did Ashish give to Arun?