Pick out the wrong statement.

Match the following:
(a) Simon Commission 1. 1928
(b) Nehru Report 2. 1932
(c) Second Round Table Conference 3. 1927
(d) Communal Award 4. 1931
(a) (b) (c) (d)

Identify the statement, which is not the cause for the failure of Quit India Movement
(a) British Government arrested key leaders in anticipation to the movement
(b) Nehru and Rajaji disbelieved in Direct Action
(c) Hindu Mahasabha and Muslim League supported the movement
(d) British Government suppressed the movement

Among the 50 students in a class, what percentage of students like biology and chemistry?
Subjects No. of students
Mathematics 6
Physics 12
Chemistry 15
Biology 8
Computer science 9

For any in observations of data, what is the value of (Σx) — n$ \overline{x}$?

Simplify : $\dfrac{0.728×0.728ー0.272×0.272}{0.456}$

IF $\dfrac{x}{y}$=$\dfrac{x}{y}$ then $\dfrac{5x+2y}{5x-2y}$, is equal to

A person's present age is two-fifth of the age of his mother. After 8 years, he will be one half of the age of his mother. How old is the mother at present?

Find the value of $ \dfrac{1.2×1.2×1.2ー0.2×0.2×0.2} {1.2×1.2+1.2×0.2+0.2×0.2 } $

A bicycle marked at Rs. 1,500 is sold for Rs. 1,350. What is the percentage of discount?