Total weight of 20 students = 20 × 50 = 1,000 kg Including the teacher, new total weight = 21 × 51 = 1,071 kg Teacher’s weight = 1,071 - 1,000 = 71 kg Replacing the teacher with a 55 kg student: New total weight = 1,000 + 55 = 1,055 kg New average = 1,055 ÷ 21 = 50.24 kg Correct Option: a)
If the cost of 4 pens and 6 note books is ₹ 800, then find the cost of 6 pens and 9 note books.
Sum of the two numbers is 6 times their difference. Then the numbers are in the ratio.
EVM Stands for __________.
What are the 'Polyps' ?
The sum of three different natural numbers is equal to their product. The sum of their squares is
Consider the following statements :
1. The Puranas were written in simple Sanskrit verse, and were meant to be heard by everybody, incl...
Penicillium is a _____________.
Who is the chairperson of 15th finance commission
What is the next number 2, 9, 28, 65, __________.
