- Ratio of the cost price to marked price of the Book is 4: 5. the shop offer a discount of 15% and the marked price of the article is Rs.720. What is the profit percentage of the Book?
3.25%5.25%4.25%5.25%6.25%Option E

CP = 4/5 * 720 = Rs.576

SP = 720 * 85/100 = Rs.612

Profit percentage = (612 – 576)/576 * 100

= 6.25% - Kayal and Mayan together can complete a work in 30 days. If Mayan alone complete 20% of the work in 16 days. In how many days Kayal alone complete 75% of the work?
3638404244Option A

K+ M = 1/30

M = 5/1 * 16 = 80 days

K= 1/30 – 1/80

K = (8 – 3)/240 = 5/240

K = 1/48

K complete the 75% of the work in = 48 * ¾ = 36 days - Kiran and Mithun invests in the ratio of 2: 3 and the investment period of x months and y months respectively. If the total profit of the business is 3500 and Mithun’s share is Rs.1500, then what is the ratio of x: y?
2/13/42/54/72/9Option A

profit = 3500 – 1500 = 2000

(2 * x)/(3 * y) = 2000/1500

2x/3y = 4/3

x/y = 2/1 - Person S invests Rs.8000 in scheme A which offer simple interest at 15% per annum for x years. After x years S received the total amount is Rs.17600. Find the value of x
56789Option D

SI = (P * N * R)/100

SI = 17600 – 8000 = Rs.9600

9600 = (8000 * 15 * N)/100

N = 8 years - Ratio of the speed of Ship in still water to river is 4: 1. If the ship rowing the speed of 20 kmph in still water, then what is the ratio of the speed of ship rowing against the current and along the current?
3: 53: 74: 53: 83: 10Option A

Speed of river = ¼ * 20 = 5 kmph

Speed of the ship along the river = 20 + 5 = 25 kmph

Speed of the boat against the river = 20 – 5 = 15 kmph

Required ratio = 15: 25

= 3: 5 - A container of 120 liters contains oil and ghee. If 60 % of oil and 30 % of ghee is taken out, then the vessel will be half empty. Find the ratio of initial quantity of oil and ghee in the container?
5:62 : 11:67:42:0Option B

O+ G = 120 -à (1)

(60/100) * O + (30/100) * G = 60

6O + 3G = 600 —> (2)

By solving the equation (1) and (2), we get,

O = 80 liters, G = 40 liters

Required ratio = 80 : 40 = 2 : 1 - How many 6 letter words with or without meaning can be formed out of the letters of the word, ‘INCUBATORS’, if repetition of letters is not allowed?
169006350861151200713058601427Option C

The word contains 10 different letters.

Required number of words = 10p6

= > (10 * 9 * 8 * 7 * 6 * 5) = 151200 - A guy drives 360 km from point A to B in 5 hours and backs to point B in 4 hours. If M is the average speed of the entire trip, then the average speed for the journey from B to A exceeds M by?
10 km/hr56km/hr89km/hr45km/hr16km/hrOption A

The speed from A to B = 360/5 = 72 km/hr

The speed from B to A = 360/4 = 90 km/hr

The average speed of the entire trip = 2xy/(x+ y)

= > [(2 * 72 * 90) / 162]= > 80 km/hr

Required difference = 90 – 80 = 10 km/hr - A purse has the dollars of 10p, 50p and 1 rupee is in the ratio of 5: 4: 3. If there is Rs. 22 in all, then find the total number of 50p coins?
9014549816Option E

A purse has the coins of 10p, 50p and 1 rupee is in the ratio = 5: 4: 3 (5x, 4x, 3x)

22 = [(5x * 10) / 100] + [(4x * 50) / 100] + [(3x * 1)]22 = (50x/100) + (200x/100) + 3x

22 = (x/2) + 2x + 3x

44 = 11x

x = 4

The total number of 50p coins = 4x = 16 - A express train crosses a pole in 25 sec and the same train crosses a platform of length 150 m in 40 sec. Find the length of the train?
567m605m845m250 m831mOption D

Let the length of express be x,

Here, the speed of the train is equal. So,

(x / 25) = (x + 150) / 40

8x = 5x + 750

3x = 750

x = 250

The length of the train (x) = 250 m