MATHS 1 Marks Question

Prerna was living on the first floor of an apartment. The first floor can be reached by walking up a staircase consisting of 7 steps. Prema usually climbs up by taking either 1 step each time or a maximum of 2 steps at a time. In how many ways can Prema reach her floor?

A lamp is ON. Ravi toggles its switch 23 times. Will the lamp be lighted or not?

Create a magic square using 9 non-consecutive numbers whose magic sum is 18.

Choose the correct option: The expression (2m – 1) always has an (even/odd) parity.

Choose the correct option: Parity of the 10th term of the Virahanka numbers is (even/odd).

Choose the correct option: The expression (4a + 2), (always/never) gives an even number.

Choose the correct option: Parity of the sum of numbers from 1-20 is (even/odd).