Question

Mary has R75 and she spends 4/5 of her money .
How much does she spend?

Answer 1

Step-by-step explanation:

TOTAL MONEY = 75 ruppees

MONEY SPENT = 4/5 of TOTAL MONEY

= 4/5 * 75 = 60 rippers ANSWER

Answer 2

Answer:

Mary has R75 and she spends 4/5 of her money; so,  she spends Rs 60.

Step-by-step explanation:

• Mary has Rs 75.

• She spends 4/5 th of her money.

• So, Mary spends 4/5 of 75 = $\frac{4}{5}$ ×75 = 4 ×15 = 60

• Hence, Mary spends Rs 60.

• In math, 'of' is  considered as one of the arithmetic operations which performs multiplication within the brackets.

     For example,  If we need to find one-fifth of 30,

    we can write it as 1/5 of 30 = 1/5 × 30 = 6

• In mathematics, the usage of the word 'of'  is context-driven.

• In most cases, 'of' in algebra means multiplication.