Math, asked by Zoravar20, 11 months ago

pls give me ans fast

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Answered by siddhartharao77
5

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!


Zoravar20: Ye mujhe Smj ni Aaya
siddhartharao77: Which step u didnt understand
Zoravar20: ohhh Thnx dear
Answered by malti010872
1

Mark as brainliest plzz...

Inna toh krr hi skta h...

Answer toh uppr wale m se dekh hi liya hona h tune...!!!

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