₹700 is invested at 7% per annum simple interest. How long will it take for the
amount to reach ₹784?
Answers
Answer:
Step-by-step explanation:
See Boss This is also count on 100 So If you Earn 7Rs. At rate of 7% Per Annum on 100Rs. Then On 700 You will earn 49Rs.
Not clear then look do Direct and Inverse Variation
On 100 you get 7Rs. Per Year
Ok 700/100=7 Means 7*7=49Rs. you will get yearly on 700
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P=₹700 R=7% p.a S.I= (₹784-₹700)
Therfore,the time required for the amount to reach ₹784
=》T= 100×₹84/₹700×7%
=》 T= 1× 84/7×7%( cancel the zeros of 100 and 700)
=》 T= 1×12/1×(7/100)( cancel out 84 by 7 )
=》 T=12×100/7( put the 100 in the upper part of the fraction and change the unit of division to multiplication)
=》T=1200/7(Divide♡ -_-)
=》T=171.4285714286 days of time or 171 whole number 3/7 as the fraction part...(days)