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IBPS RRB PO Prelims 2017Attempt
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Chapters. Time and Work
A and B together can do a piece of work in 60 days, A and C can do the same work in 45 days. The ratio of Work efficiency of B and C is 1:2. In how many days they together can do the same work?
Chapters. Alligation and Mixture
Swami brought pulses of worth INR 32/kg and INR 45/kg. He mixed them with a third variety in the ratio 1 : 1 : 2. If the mixture is worth INR 88/kg, then the price of the third variety per kg will be:
Chapters. Boats and Stream
The speed of a boat in still water is (27/4) km/hr. The time required to travel a certain distance upstream is five times than that of downstream for the same distance. Find the speed of the stream?
The average of five positive numbers is 128. The average of the first two numbers is 118 and the average of last two numbers is 126. What is the third number?
A started a business with investing Rs. 8000 and after some months, B joined with investing Rs. 5000. At the end of one year, total profit was Rs. 4250 and share of A is Rs. 3000. After how many months did B join?
The ratio of Curved Surface Area to Total Surface Area of Cylinder is 3:5. If the curved surface area of the cylinder is 1848 metre square, find the height of the cylinder?
How many letters will remain the same position in the word ‘MONSTER’ when they arranged in the ascending order from left to right?
The positions of how many alphabets will remain unchanged if each of the alphabets in the word PROACTIVE is arranged in alphabetical order from left to right?
How many such digits are there in the number 935126 which remain same in the number as when the digits are rearranged in descending order within the number?
A bag contains 6 Red, 5 Green, and 4 Yellow coloured balls. 2 balls are drawn at random after one another without replacement then what is the probability that at least one ball is Green?
Chapters. Problems on Ages
The present age of A is 3 years less than the present age of B. Ratio of B’s age 5 years ago and A’s age 4 years hence is 3 : 4 then find present age (in years) of A?
If 1 is subtracted from each odd number and 2 is added to each even in the number 9436527, then how many digits will appear twice in the new number thus formed?
One ball is picked up randomly from a bag containing 8 yellow, 7 blue and 6 black balls. What is the probability that it is neither yellow nor black?