Question

Maria has $7$ strawberries on Monday, and on each day after Monday, the number of strawberries gets tripled. Then on Thursday, how many strawberries does Maria have?

• A. $7$
• B. $21$
• C. $63$
• D. $189$

Answer 1

The correct option is D $189$

On Monday, Maria has $7$ strawberries.

$\bullet$ On Tuesday, the number of strawberries gets tripled.

$\therefore$ Number of strawberries available with Maria on Tuesday $=7\times 3=21$

$\bullet$ Number of strawberries on Wednesday would be obtained by tripling the number of strawberries available on Tuesday.

$\therefore$ Number of strawberries available with Maria on Wednesday $=21\times 3,$ which can be evaluated as



Hence, number of strawberries available with Maria on Wednesday $=63$

$\bullet$ Number of strawberries on Thursday would be obtained by tripling the number of strawberries available on Wednesday.

$\therefore$ Number of strawberries available with Maria on Thursday $=63\times 3,$ which can be evaluated as


Hence, the number of strawberries available with Maria on Thursday $=189,$ i.e., option (d.) is the correct one.