# TCS Placement: Sample Questions 426 - 427 of 502

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## Question 426

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The cost price of a cow and a horse is ₹ 3 lakhs. The cow is sold at 20 % profit and the horse is sold at 10 % loss. Overall gain is ₹ 4200. What is the cost price of the cow?

### Explanation

• Let the cost of cow is ₹ x and cost of horse is ₹ y.
• Here, cost price of cow and horse is ₹ 3 lakhs.
• So,
• Overall gain is ₹ 4200.
• We know,

• The cow is sold at 20 % profit and the horse is sold at 10 % loss, i.e..
• Solving both the equations,

• So, cost price of cow is ₹ 114000.

## Question 427

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### Write in Short

If TAFJHH is coded as RBEKGI then what will be the code for RBDJK?

### Explanation

• Here, TAFJHH is coded as RBEKGI.
• In the first letter ‘T’ is decremented by two positions in alphabets and coded as ‘R’
• Second letter ‘A’ is incremented by one position in alphabets and coded as ‘B’
• Third letter ‘F’ is decremented by one position in alphabets and coded as ‘E’
• Fourth letter ‘J’ is incremented by one position in alphabets and coded as ‘K’
• Fifth letter ‘H’ is decremented by one position in alphabets and coded as ‘G’
• Sixth letter ‘H’ is incremented by one position in alphabets and coded as ‘I’
• Following the same pattern we can find the code word for RBDJK
• Decrementing letter ‘R’ by two position in alphabets, it will be coded as ‘P’
• Incrementing letter ‘B’ by one position in alphabets, it will be coded as ‘C’
• Decrementing letter ‘D’ by one position in alphabets, it will be coded as ‘C’
• Incrementing letter ‘J’ by one position in alphabets, it will be coded as ‘K’
• Decrementing letter ‘K’ by one position in alphabets, it will be coded as ‘J’
• So, code word for ‘RBDJK’ will be ‘PCCKJ’

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