The area of a rectangle is 5/7 that of a square. The length of the rectangle is 20 cm and the breadth of the rectangle is 3/2 times that of the side of the square. The side of the square, (in cm) is

Using the formula, Area = Length x Breadth & Area = side² = a² Side of a square = a cm Therefore, Area of rectangle = 5/7 x area of square ⇒ 20 x (3/2) x a = 5/7 x a² ⇒ a = (20 x 7 x 3)/(5 x 2) ⇒ a = 42 cm

Select the number from among the given options that can replace the question mark (?) in the following series.

24, 35, 51, 73, 102, ?

If '÷' means '+', '+' mean '-', ' X ' means '÷' and '-' means ' X ', then what will be the value of the given expression:

Which two signs should be interchanged to make the following equation correct?

36 – 36 ÷ 9 + 8 × 4 = 8

If ‘–‘ means ‘addition’, ‘+’ means ‘subtraction’, ‘÷ ‘ means ‘multiplicat...

By interchanging the given two numbers (not digits), which of the following equations will be correct?

24 and 9

What will be the value of expression if the numbers/digits ‘(42)’ and ‘(16)’ are interchanged?

16 - 32 ÷ 8 × 12 + 11 + 42

...Which sequence of mathematical symbols among given sequences must be inserted in place of the (?) in order to obtain the desired result?

If four hats are picked at random, what is the probability that one is green, two are blue and one is red?

A toy is sold for Rs. 800 at 60% profit when profit is calculated on selling price. Find the profit% on cost price?

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.

24 * 2 * 16 * 2 * 13 = 53

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