Question

in how many years 7500rs double at 8% simple interest
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Answer 1

Answer :-

Given :-

• Principal = Rs 7500
• Amount = Rs. 7500 × 2
• Rate of interest = 8% p.a.

To Find :-

• Time

Solution :-

→ Simple interest = Amount - Principal

→ SI = 15000 - 7500

→ SI = 7500

Substituting the value in formula of simple interest :-

→ SI = P × R × T / 100

→ 7500 = 7500 × 8 × T / 100

→ 7500 = 75 × 8 × T

→ 7500 = 600T

→ T = 7500 / 600

→ T = 75 / 6

→ T = 12.5

Time = 12.5 years

Answer 2

Answer:

Given :-

• Principal = ₹ 7500
• Rate = 8%

To Find :-

Time

Solution :-

Amount = 2 × Principal

Amount = 2 × 7500

Amount = 15000

For SI

SI = Amount - Principal

SI = 15000 - 7500

SI = 7500

For time

T = SI × 100/P × R

T = 7500 × 100/7500 × 8

T = 100/8

T = 12.5

$\therefore{ \textsf{ \textbf{ \pink{ \underline{Time is 12.5 years}}}}}$