**Two years ago the average age of a family of 8 members was 18 years. After the addition of a baby, the average age of family remains the same today. What is the age of the baby ?**- 1 year
- 2 years
- 4 years
- 3.5 years

Answer : Option B.

**An article when sold at a gain of 5% yields Rs. 15 more than when sold at a loss of 5%. The cost price of the article is:**- Rs. 200
- Rs. 150
- Rs. 80
- Rs. 64

Answer : Option B.

10/100 × x = 15 ⇒ x=150

As the loss and profit both are earned on the cost price.**If X gets 25% more than Y and Y gets 20% more than Z, the share of Z out of Rs. 740 will be:**- Rs. 300
- Rs. 200
- Rs. 240
- Rs. 350

Answer : Option B.

Z share = Z,

Y = 1.2Z

X = 1.25×1.2Z,

X+Y+Z =740

(1.25× 1.2+1.2+1)Z=740

3.7Z=740, Z=200

**In a mixture of 35 litres the ratio of milk and water is 4 : 1. If 7 litres of water is added to the mixture, the ratio of milk to water in the resultant mixture will become :**- 2 : 3
- 3 : 2
- 2 : 1
- 1 : 2

Answer : Option C.

Mixture = 35L, Milk = 4/5 × 35 =28L

Water = 1/5 × 35 =7L

New 28/7+7 = M/W

⇒ 28/14 = M/W =2/1**What will be the income tax payable by a person getting a taxable income of Rs. 30,000 during the year if the first Rs. 18000 is not taxable and the tax rates are 25% of the next Rs. 12000 ?**- Rs. 3000
- Rs. 3250
- Rs. 3500
- Rs. 3750

Answer : Option A.

T.I.=30,000, N.T.I.=18000

Taxable 12000, Income Tax = 25% of Taxable Income

= 1/4 ×: 12000 = RS.3000Tech Mahindra Preparation Links- Sample Aptitude Questions of Tech Mahindra
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**10 men can finish a piece of work in 10 days whereas it takes 12 women to finish it in 10 days. If 15 men and 6 women undertake to complete the work, how many days will they take to complete the work?**- 2
- 4
- 5
- 11

Answer : Option C.

10 men = 10 days, 1 men 1 day = 1/100 work

12 women = 12 days, 1 women 1 day = 1/120

15 men + 6 women, 15 × 1/100 + 6 × 1/120

3/20 +1/20= 4/20 =1/5 work= 5 days**A merchant marks his wares 40% more than the real price and allows 20% discount. His profit is:**- 20%
- 18%
- 16%
- 12%

Answer : Option D.

Let the CP = 100 Rs.

Mark Price = 140

Discount = 20%

Selling price 80/100 × 140 = 112

Hence profit = 12%**A train 280 metres long is moving at 60 kms per hour. The time taken by the train to cross a platform 220 metres long is:**- 20 seconds
- 25 seconds
- 30 seconds
- 35 seconds

Answer : Option C.

**A person spends 40% of his salary on food, 25% on house rent, 15% on entertainment and 5% on conveyance. If his savings at the end of the month is Rs. 1200, then his salary per month in rupees is:**- 4000
- 6000
- 8000
- 10000

Answer : Option C.

Total expenditure = 40 + 25 + 15 + 5 = 85%

Saving = (100 - 85) = 15%

15/100 × Salary = 1200, Salary = 8000 Rs.**The average of 7 consecutive numbers is 33. The highest of these numbers is:**- 28
- 30
- 33
- 36

Answer : Option D.

The average of 7 consecutive numbers will be the 4th number which is given to be = 33 5th number = 34, 6th number = 35, 7th number = 36