2.A man,a women and a child can do a piece of work in 6 days,man can do it in 14 days,women can do it 16 days,and in how many days child can do the same work?
3.In the 20th century there is a year, which does not change if viewed upside down. Which is the year?
4. Obtain 20 using two threes. (You can use any mathematical sign or operation)
5.A file is transferred from one location to another in ,buckets,. The size of the bucket is 10 kilobytes. The bucket gets filled at the rate of 0.0001 kilobytes per millisecond. The transmission time from sender to receiver is 10 milliseconds per bucket. After the receipt of the bucket the receiver sends an acknowledgement that reaches sender in 100 milliseconds. Assuming no error during transmission, write a formula to calculate the time taken in seconds to successfully complete the transfer of a file of size N kilobytes.
6.A dishonest dealer professes to sell his goods at cost price. But he uses a false weight and thus gains 300/47% for a kg, he uses a weight of
a)940gms b)947gms c)953gms d)960gms
7.A, B and C start at the same direction to run around a circular stadium. A completes a round in 252 sec, B in 308 sec and C in 198 sec, all starting at the same point. After what time will they meet again ?
8.Jalia is twice older than qurban. If jalia was 4 years younger, Qurban was 3 years older their difference between their ages is 12 years. What is the sum of their ages?
a)67 b)57 c)36 d)none
9.A sporting goods store ordered an equal number of white and yellow balls.The tennis ball company delivered 45 extra white balls,making the ratio of white balls to yellow balls 1/5 :1/6how many white balls
10.In 80 coins 1 coin is counterfeit which is minimum no. of weighings to find out counterfeit coin.
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