Question

If 21 is subracted to certain number and be he number is multipled by 6 and the product is 120 find the number

Answer 1

Answer:

The number is 41.

Step-by-step explanation:

Solution :

The number is decreased by = 21

Multipled by = 6

Product = 120

Let the number be y

⇒ (y - 21) × 6 = 120

⇒ 6y - 126 = 120

⇒ 6y = 120 + 126

⇒ 6y = 246

⇒ y = 246/6

⇒ y = 41

The number = 41

Verification :

⇒ (41 - 21) × 6 = 120

⇒ 20 × 6 = 120

⇒ 120 = 120

LHS = RHS

Therefore, the number is 41.

Answer 2

$\huge\sf\red{Answer:}$

☆ Given:

⇏ If 21 is subtracted to certain number and be he number is multiplied by 6 and the product is 120.

☆ Find:

⇏ Find the number.

☆ According to the question:

⇏ Let us assume 'x' as the number.

☆ Calculations:

⇏ $\sf [(x - 21) \times 6] = 120$

⇏ $\sf 6x - 126 = 120$

⇏ $\sf 6x = 120 + 126$

⇏ $\sf 6x = 246$

⇏ $\sf x = \dfrac{246}{6}$

⇏ ${\sf{\underline{\boxed{\green{\sf{x = 41}}}}}}$

Therefore, 41 is the number.