Apurva can do a piece of work in 12 days. Apurva and Amit completed the work together and were paid Rs. 54 and Rs. 81 respectively. How many days must they have taken to complete the work together?
If 12 men and 16 boys can do a piece of work in 5 days and 13 men and 24 boys can do it in 4 days, compare the daily work done by a man with that done by a boy?
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15 men could finish a piece of work in 210 days. But at the end of 100 days, 15 additional men are employed. In how many more days will the work be complete?
If the difference between the simple interest and compound interest on some principal amount at 20% per annum for 3 years in Rs. 48, then the principal amount must be
Raju lent Rs. 400 to Ajay for 2 years, and Rs, 100 to Manoj for 4 years and received together from both Rs. 60 as interest. Find the rate of interest, simple interest being calculated.
It a certain sum of money becomes double at simple interest in 12 years, what would be the rate of interest per annum?
A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is
A train B speeding with 120 kmph crosses another train C, running in the same direction in 2 minutes. If the lengths of the trains B and C be 100 m and 200m respectively, what is the speed of the train C?
A train overtakes two persons who are walking in the same direction in which the train is going, at the rate of 2 kmph and 4 kmph and passes them completely in 9 and 10 seconds respectively. The length of the train is
A square closed loop of area A, lying in the horizontal plane is moving horizontally with velocity v in a uniform vertical magnetic field B. Which one of the following statements is FALSE?
Two liquids A and B are mixed in such a proportion that they form an ideal solution who's total vapor pressure is exactly three times that of the partial pressure of A. If PAº and PBº are the vapor pressures of pure A and B respectively, then the total vapor pressure of the solution is given by Options:
When I was a child, there used to be a fair in my town during the Diwali and Eid festivities. Among the many things I saw was a strange puppet show. There were three puppets, one of a man, another of a woman and the third one of a rakshasa (demon). Whenever the rakshasa was brought close to the woman, she would turn her face away. But when the man was brought close to her, she would turn back and face the man.
I and my friends looked at this show and argued for hours what caused the woman to turn her face. Choose one or more of the options below about my childhood experience above:
Q. The strange behaviour of the woman puppet was:
How many straight lines can be formed from 8 non-collinear points on the X-Y plane?
In how many ways can the letters of the word PATNA be rearranged?
In the word-"PATNA", how many words would be there which would start with the letter P?
A captain and a vice-captain are to be chosen out of a team having 11 players. How many ways are there to achieve this?
If the probability that A will live 15 years is 7/8 and that B will live 15 years is 9/10 , then what is the probability that both will live after 15 years?
If events A and B are independent and P(A) = 0.15, P (A ∪ B) = 0.45 then P(B) =
Four different objects 1. 2,3, 4 are distributed at random in four places marked 1, 2, 3, 4. What is the probability that none of the objects occupy the place corresponding to its number?
Direction : Read the following information carefully and answer the question below it.
All the six members of a family P, Q, R, S, T and U are travelling together Q is the son of R but R is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P. U is the brother of Q.
Q. How may male members are there in the family?
Direction : Read the following information carefully and answer the question below it.
All the six members of a family P, Q, R, S, T and U are travelling together Q is the son of R but R is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P. U is the brother of Q.
Q. Who is the mother of Q?
Direction : Read the following information carefully and answer the question below it.
All the six members of a family P, Q, R, S, T and U are travelling together Q is the son of R but R is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P. U is the brother of Q.
Q. How many children does P have?
Direction : Read the following information carefully and answer the question below it.
All the six members of a family P, Q, R, S, T and U are travelling together Q is the son of R but R is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P. U is the brother of Q.
Q. Who is the wife of T?
Direction : Read the following information carefully and answer the question below it.
All the six members of a family P, Q, R, S, T and U are travelling together Q is the son of R but R is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P. U is the brother of Q.
Q. Which of the following is a pair of females?
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