Math, asked by lahari85, 1 year ago

Please help me in5th question.

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Answers

Answered by amirshamim
0
The formula to solve for the Interest is I=Prt Where I is the Interest, P is for the Principal, r is for the rate and t is for the time. We can also solve for the interest by subtracting the amount after the time to the Principal. In this case, 8,840-6,500=2,340 This is the interest for 4 years. Therefore, to solve for the rate, we have to divide the Interest by the product of the Principal and the time which is 6,500 x 4, so we get the rate 9%. Then the second condition, the time 1,600 amounts to 1,816 at the same rate. We go back to our formula, I=Prt I=1,816-1,600 216=1,600(0.09)t 216=144t divide both sides by 144 to get the value of t. The answer is 1.5years. It will take 1 and 1/2 years for the 1,600 to amount 1,816.

Read more: In 4 years,6500 amounts to 8840 at a certain rate of interest.In what time will 1600 amounts to 1816 at the same rate? - Simple interest(ratio and application) :: Ask Me Fast at https://www.askmefast.com/In_4_years6500_amounts_to_8840_at_a_certain_rate_of_interestIn_what_time_will_1600_amounts_to_1816_at_the_same_rate-qna7607831.html#q4866745
Answered by mahatatushar25
1

Question: In 4 years, Rs.6500 amounts to Rs.8840 at a certain rate of interest. In what time Rs.1600 amounts to Rs.1816 at the same rate?

Answer:

1.5 years

Step-by-step explanation:

Formula: SI = (prt)/100

t = 4

p = 6500

SI = (8840 - 6500) = 2340

r = (SI * 100)/pt

or, r = 234000/(6500 * 4)

      = 9%

Now,

p = 1600

SI = 216

r = 9%

t = (SI * 100)/ (pr)

 = 21600/(1600 * 9)

 = 1.5

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