pls give me ans fast
Answers
Answer:
1,66,800
Step-by-step explanation:
Given that raghav buys a shop for 1,20,000.
Given that he pays half the balance.
So,Amount paid by raghav = (1/2) * 120000
= 60000
Given, Amount of each installment = 5000.
∴ First installment = 5000 + (60000 * 1 * 12)/100
= 5000 + 7200
= 12200.
∴ Second installment = 5000 + (55000 * 1 + 12)/100
= 5000 + 6600
= 11600
∴ Third installment = 5000 + (50000 * 1 * 12)/100
= 5000 + 6000
= 11000.
So, amount paid for installment is 12,200, 11,600, 11,000.
This form an AP with a = 12200, d = -600.
∴ Total payment = Half of the cost paid for shop + Payment in 12 installment
= 60000 + [12200 + 11600 + 11000 + ... +12 installments]
= 60000 + Sum of AP {∴ n/2[2a + (n - 1) * d}
= 60000 + 12/2[2 * 12000 + (12 - 1) * (-600)]
= 60000 + 6[24000 - 6600]
= 60000 + 6 * 17800
= 60000 + 106800
= 166800.
Therefore. Total cost of the shop is 1,66,800.
Hope it helps!
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