SSC CGL MAINS MATHS QUIZ

The average of a non-zero number, its square and its cube is 91 times the number. The number is?

The average marks scored by Ganesh in English, Science, Mathematics and History is less than 15 from that scored by him in English, History, Geography and Mathematics. What is the difference of marks in Science and Geography scored by him?

In an exam, the average marks of 20 students is 70 . Afterwards, it is found that the marks of 2 students are taken wrong as 54 and 74 instead of 64 and 84 . Find the correct average.

A student finds the average of 10 positive integers. Each integer contains two-digit. By mistake, the boy interchange the digits of one number, and due to this average becomes 1.8 less than the previous one. Find the difference between the two-digit.

Find the average of p and q , if the average of 22, 15, 28, p and q is 16.

The average of six positive numbers is $12.5$. If the first number is two-third of the sum of the last five numbers, then find the average of the last five numbers.

The average height of five friends is 150 cm. If the heights of 4 of these friends are 153 cm, 150 cm, 151 cm, and 147 cm then the height of the fifth friend is -

The average number of electronic items sold by a trader in 2004, 2005, 2006 and 2007 is 18950 and that sold in 2005, 2006, 2007 and 2008 is 21725. If the number of items sold in 2008 is 12750, then the number of items sold in 2004 is:

What is the average of smallest 5 prime numbers?

Of the three numbers, the first is twice the second and thrice the third. The average of the numbers is 88. What is the difference between the first number and the third number?