A trader mixes 26 kg of rice at Rs. 20 per kg with 30 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is:
C.P. of 56 kg rice = Rs. (26 x 20 + 30 x 36) = Rs. (520 + 1080) = Rs. 1600. S.P. of 56 kg rice = Rs. (56 x 30) = Rs. 1680. Gain = 80 x 100 % = 5%
Q. No. :
2
Question :
A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and slips back 2ft. How much time would it take the monkey to reach the top?
A :
15
B :
20
C :
21
D :
18
Answer: D
Q. No. :
3
Question :
Train X starts from A towards B which is 180 Kms apart. At same time, train Y start from B towards A. Train X travels at speed of 70 kmph and Y travels at 50 kmph. While X does not stop anywhere on the way, the train Y stops at station C in between at 60km from B for 15 minutes. At what distance from A they would meet
Let the meet at a distance x km from A.
So x/70 = (180-x)/50 + 1/4
or, 100x/70 = 360-2x+25
or, 10x = 2520 - 14x + 175
or, 24x = 2695
or, x = 2695/24 = 112.3km
Q. No. :
4
Question :
A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:
Let original length = x and original breadth = y. Decrease in area = xy - (80*90xy) /(100*100)
= xy - 18xy/25 = 7 xy/25
Decrease % = 7 xy/25 * 1 * 100 % = 28%
Q. No. :
5
Question :
X's father's wife's father's granddaughter uncle will be related to X as
A :
Son
B :
Nephew
C :
Uncle
D :
Grandfather
Answer: C
Q. No. :
6
Question :
A possible output of the following program fragment