Question

QUESTION 6
+5 Marks
What amount of money will amount to 750 in 6 years and to 800 in 8 years at simple interest?​

Answer 1

Given :- What amount of money will amount to 750 in 6 years and to 800 in 8 years at simple interest ?

Answer :-

since rate is simple interest per annum .

we know that,

• In simple interest , we recieved same interest each year .

so,

→ Amount in 6 years = Rs.750

→ Amount in 8 years = Rs.800 .

then,

→ In 2 years amount increased = 800 - 750 = Rs.50 { Simple interest .}

so,

→ In 1 year amount was increased = 50/2 = Rs.25

then,

→ In first 6 years amount was increased = 25 * 6 = Rs.150 = Total SI .

therefore,

→ Principal = 6 years Amount - 6 years simple interest = 750 - 150 = Rs.600 (Ans.)

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