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Ram, Rahim and Rehman go for shopping. Ram buys 1 Android phone, 1 iOS phone and 1 windows phone for Rs. 36,800. Rahim buys 1 Android phone, 2 iOS phone and 3 windows phones for Rs. 78,400. Rehman does not like Android phone, so he buys only 1 iOS phone and 3 windows phones for Rs. 56,000. What is the price of Android phone?

Ram, Rahim and Rehman go for shopping. Ram buys 1 Android phone, 1 iOS phone and 1 windows phone for Rs. 36,800. Rahim buys 1 Android phone, 2 iOS phone and 3 windows phones for Rs. 78,400. Rehman does not like Android phone, so he buys only 1 iOS phone and 3 windows phones for Rs. 56,000. What is the price of Android phone? Correct Answer Rs. 9,600

Let the android phone is denoted by ‘A’, iOS phone by B and windows phone by C.

According to question,

A + B + C = 36800              ----(1)

A + 2B + 3C = 78400          ----(2)

B + 3C = 56000          ----(3)

Now adding equation (1) and (3) and subtracting (2) from it

C = 36800 + 56000 – 78400 = 14400

Equating this value of C in equation (3)

B = 56000 – 3 × 14400 = 12800

Equating value of B and C in equation (1)

A = 36800 – 14400 – 12800 = 9600

The price of android phone is Rs. 9600

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