Simple Equations — MATHS STD 6 — Question

Twice a variable added to 4 is added to 3 subtracted from thrice the same variable. This statement can be written as

The product of three consecutive numbers is always divisible by.

The sides of a rectangle are in the ratio 8 : 7 and its perimeter is 90 cm. The length of the rectangle is

The predecessor of an integer is (n + 13) and the successor of the integer is (-n + 7). The integer is:

State, whether or not the following set is empty:
{Women with height 5 metre}

State, whether the following is a finite or infinite set:
Set of children in all the schools of Delhi

Two cars start from a place at the same time. Their speeds are 65 km per hour and 55 km per hour. What will be the distance between them after 2 hours if, both the cars are moving towards the east?

State, if the given pair of sets are equal sets or equivalent sets:
{Even natural numbers} and {odd natural numbers}