# Aptitude Percentage TNPSC Previous Year Questions - 1

Question: 1

Fresh fruit contains 68% water and dry fruit contains 20% water. How much dry fruit can be obtained from 100 kg of fresh fruits?

(A) 32 kg

(B) 36 kg

(C) 40 kg

(D) 52 kg

Ans: C

Quantity of pulp in 100 kg of fresh fruits = (100 - 68)% of 100 kg = 32 kg.

Let the quantity of dry fruit obtained be x kg.

Then, (100 – 20)% of x = 32.

⇔ $${80}/{100}$$x = 32

⇔ x = $$({32 × 100} / {80})$$ = 40.

Question: 2

32% of 825 + 25% of 1440 = 1025 - (?)

(A) 206

(B) 223

(C) 401

(D) 456

Ans: C

Given 32% of 825 + 25% of 1440 = 1025 – (?)

(?) = [1025 – (32% of 825) – (25% of 1440)]

⇒ 1025 – $$({32 × 825} / {100})$$ – $$({25 × 1440}/{100})$$

= (1025 - 264 - 360)

= 401.

Question: 3

In a village three people contested for the post of village Pradhan. Due to their own interest, all the voters voted and no one vote was invalid. The losing candidate got 30% votes. What could be the minimum absolute margin of votes by which the winning candidate led by the nearest rival, if each candidate got an integral percent of votes?

(A) 1

(B) 2

(C) 3

(D) 4

Ans: B

Let total votes in village = 100

Losing candidate got votes = 30% of 100 = 30 votes

Winner’s and nearer rival’s votes

= $$100 - {30}/{100} × 100$$ = 70

∴ If both get equal votes then, it should be 35.

∴ Minimum difference between winner and nearer rival = (36 - 34) = 2.

Question: 4

When 15% is lost in grinding wheat, a country can export 30 lakh tons of wheat. On the other hand, if 10% is lost in grinding, it can export 40 lakh tons of wheat. The production of wheat in the country is

(A) 200 lakh tons

(B) 400 lakh tons

(C) 600 lakh tons

(D) 800 lakh tons

Ans: A

Let the total production be x lakh tons.

Then, 15% of x – 10% of x = (40 – 30) lakh tons

⇔ 5% of x = 10 lakh tons

⇔ x = $$({10 × 100} / {5})$$ = 200 lakh tons.

Question: 5

40% of 265 + 35% of 180 = 50% of ?

(A) 169

(B) 253.5

(C) 338

(D) 423

Ans: C

Let 40% of 265 + 35% of 180 = 50% of x.

Then, $$({40}/{100} × 265)$$ + $$({35}/{100} × 180)$$ = $$({50}/{100} × x)$$

⇒ 106 + 63 = $${x}/{2}$$

⇒ x = 169 × 2 = 338.

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