More about self assessment year

I don't understand 

To admit teacher training student in a certain university, he must pass a test that contains 15 questions each for two sections A and B . The questions contain true or false answers. If a student did the examination by guessing, what is the probability that he got 15 questions in all correctly.

To admit teacher training student in a certain university, he must pass a test that contains 15 questions each for two sections A and B . The questions contain true or false answers. If a student did the examination by guessing, what is the probability that he got 15 questions in all correctly.

The ratio of volume of a cube to that of a sphere which will exactly fit inside the cube is

Eight class maths chapters algebraic equations

What is radius of curvature?

Are all rational numbers written in p/q co prime

Find 12×35 using distributivity

Estimate the product by general rule 452x 1562

x⁴ 3x³ 3x² X 1÷x 1

Class 11 ch3 example no.29

Balnce sheet of new light ltd

New gstr filing

Classify the following no. Rational or irrational.

0.101001000100001........

2 2 2 2 2 ×× 2 2 2 2

Where is the voice of uncle 

Sri R.K is employed as an engine driver in northern railway. He is getting rupees 270500 per month as basic pay, rs. 70500 per month as dearness pay and rs. 70500 per month as dearness allowance  . During the previous year he received the following allowances aslo:
a)₹16500as running allowance
b)₹5500 p.m house rent allowance