Question

a bought an item from a shopkeeper at Rs. k and paid the amount to the shopkeeper in three equal annual installments of rs 6720 at 4 percent rate of simple intrest what is the value of k​

Answer 1

Value of K = 18000

Step-by-step explanation:

A bought an item from a shopkeeper at rs.K

Simple interest at 4 %   for 3  times

Simple interest  = K * 4 * 3 /100 =  0.12K

Total Amount to be paid = K + 0.12K  = 1.12K

Amount paid = 3 * 6720

Equating both

1.12K  = 3 * 6720

=> K = 20160/1.12

=> K = 18000

Value of K = 18000

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Answer 2

Answer:

18720

Step-by-step explanation:

K × (1+4×3/100) = 6720×(1+4×2/100) +6720×(1+4×1/100) + 6720

K=18720