**The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What is the weight of the new person?**- 76.5 Kg
- 78 Kg
- 85 Kg
- Inadequate Data

Answer : Option C.

Increase of Average = 2.5 for 8 persons

Total Increase = 2.5 × 8 = 20 kg.

Weight of New Person = 65 kg + 20 kg = 85 kg**The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is:**- 1520 sqm
- 2520 sqm
- 2480 sqm
- 2720 sqm

Answer : Option B.

P = 2 (L + B) L – B = 23

=> 2 L + 2 B = 206

2 L – 2 B = 46

=> L = 63;

B = 40 Area = 63 × 40 = 2520 sqm

**On 8th Feb, 2005 it was Tuesday. What was the day of the week on 8th Feb, 2004?**- Sunday
- Monday
- Tuesday
- Thursday

Answer : Option A.

Between 8th February 2004 & 8th Feb 2005 there are 366 days.

366 days => 52 weeks + 2 days

Hence, it was SUNDAY**In one hour, a boat goes 11 km/hour along the stream and 5 km/hour against the stream. The speed of the boat in still water (in km/hour) is:**- 5
- 7
- 8
- 10

Answer : Option C.

11/(B+S) = 1 hr

5/(B-S) = 1 hr

=> B + S = 11 & B - S = 5

Therefore, on solving we get

= > Boat speed = 8km/hr

Stream Speed = 3km/hr**Ram purchased 20 dozens of toys at the rate of Rs.375 per dozen. He sold each one of them at the rate of Rs.33. What was his percentage profit?**- 3.6
- 3.8
- 4.1
- 5.6

Answer : Option D.

CP = 375 × 20 = 7500/-

SP = 33 × 12 × 20 = 7920/-

Therefore, % Profit = (7920 - 7500)/7500 × 100 = 5.6%Lion Bridge Preparation Links- Sample Aptitude Questions of Lion Bridge
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**When the profit on a commodity triples then its selling price is doubled. Find the profit percent.**- 35
- 50
- 85
- 100

Answer : Option D.

Going by the options (d) satisfies

CP = 100/- Price = 100% SP = 200/-

CP = 100/- Price = 300% SP = 400/-**In a 100 m race, A beats B by 10 m and C by 13 m. In a race of 180 m, B will beat C by:**- 4m
- 6m
- 8m
- 9m

Answer : Option B.

A -> runs 100m

B -> runs 90m

C -> runs 87m

=> B runs 180m

C runs 174 m => 6m**A dishonest milk seller professes to sell the milk at cost price but gain 20%. The proportion of milk and water is:**- 5:3
- 4:1
- 6:5
- 5:1

Answer : Option B.

The amount of water is the Gain ( 20% )

=> Proportion is 4: 1**It takes 5 hours for a boat to go down-stream and 10 hours to return to the same place against the stream. If the stream is flowing at the rate of 40 km/hour, calculate the speed of the boat.**- 150 km/hour
- 170 km/hour
- 120 km/hour
- 100 km/hour

Answer : Option C.

D/(B - 40) = 5 hr

D/(B + 40) = 10 hr

=> B - 40 = 5/D & B - 40 = 10/D

=> 2B - 80 = B + 40

Therefore, speed of boat = 120 km/hr**Cost price of 30 mangoes is equal to the selling price of 24 mangoes. Calculate the percentage of profit.**- 20
- 25
- 30
- 32

Answer : Option B.

CP of 1 Mango = 1/-

CP of 30 Mango = 30/-

SP of 24 Mangoes = 30/-

SP of 1 Mango = 1.25/-

=> Profit = 25%