# Aptitude [HCL Placement]: Sample Questions 9 - 10 of 43

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## Question 9

Aptitude

### Question

MCQ▾Worker W produces n units in 5 hours. Workers V and W works independently but at the same time, produce n units in 2 hours. How long would it take if V alone to produce n units?

### Choices

Choice (4) | |
---|---|

a. | 3 hr 20 min |

b. | 1 hr 53 min |

c. | 3 hr 30 min |

d. | 1 hr 26 min |

### Answer

a.### Explanation

- Worker W can independently produce n units in 5 hours
- Worker V and W together can produce n units in 2 hours
- In x hour՚s worker V independently can produce n units
- We can write the given statement in equation form,

- 1 hour = 60 minutes
- hour = 20 minutes
- So, x = 3 hr 20 minutes
- Worker V will take 3 hours 20 minutes to produce n units independently.

## Question 10

Aptitude

### Question

MCQ▾An investor purchased shares of stock at a certain price. If the stock increased in price ₹ 0.25 per share and the total increase for the x shares was ₹ 12.50, how many shares of stock had been purchased?

### Choices

Choice (4) | |
---|---|

a. | 25 |

b. | 100 |

c. | 125 |

d. | 50 |

### Answer

d.### Explanation

- Investor purchases some shares. The stock price increases 0.25 per share and total price for x shares is ₹ 12.50
- By dividing total price for x shares with price for one share we can calculate no. of shares.
- Total number of shares =

= 50

- Total 50 shares have been purchased by investor.