UP LEKHPAL MATH QUIZ 2

Question 1:

The time taken by a boat to travel $13 \mathrm{~km}$ downstream is the same as time taken by it to travel $7 \mathrm{~km}$ upstream. If the speed of the stream is $3 \mathrm{~km} / \mathrm{h}$, then how much time (in hours) will it take to travel a distance of $44.8 \mathrm{~km}$ in still water ?

$4 \frac{12}{25}$

$5 \frac{3}{5}$

$5 \frac{2}{5}$

$4 \frac{13}{25}$

Question 2:

Direction :- Study the following pie charts carefully and answer the question given below.
Sum of the length of all the seven Trains : 6000 metres

Sum of the speeds of all the seven Trains : 720 km/hr

What will be the ratio of the times taken by the three Trains P, Q and R to pass a telegraph post completely?

$18: 17: 13$

$3: 5: 4$

$54: 85: 52$

$120: 68: 65$

Question 3:

Direction :- Study the following pie charts carefully and answer the question given below.
Sum of the length of all the seven Trains : 6000 metres

Sum of the speeds of all the seven Trains : 720 km/hr

What will be the ratio of the times taken by the three Trains P, Q and R each to cross the stationary Train S?

$3: 5: 4$

$221: 234: 306$

$680: 396: 435$

$120: 68: 65$

Question 4:

If numbers 6, 12, 13, 15, x, 20, 21, 28, 29, 30 are arranged in increasing order and their median is 15 then find x?

50

25

48

10

Question 5:

The mean of 21 observations (all different) is 40 . If the value of each of the 10 observations is increased by 21 , then the new mean of the observations will be:

30

45

$50.5$

50

Question 6:

Pawan sold an article at a loss of $12.5 \%$. Had he sold the article for $Rs. 56$ more, he would have made a profit of $22.5 \%$. What should be the selling price of the article to get $25 \%$ profit?

$Rs. 185$

$Rs. 190$

$Rs. 200$

$Rs. 182$

Question 7:

An article is sold for Rs. 372 after two successive discounts of $25 \%$ and $38 \%$ on its marked price. Total discount (in Rs.) is:

380

400

428

420

Question 8:

$35 \%$ of the students in a college are girls and the rest are boys. The total number of students in the college is $2800$. $75 \%$ of the boys and $85 \%$ of the girls passed the final examination. The percentage of total students who passed the final examination is:

$80 \%$

$82 \%$

$78 \%$

$78.5 \%$

Question 9:

What will be the square root of 11881 ?

111

109

119

101

Question 10:

The product of two numbers is $0.646$. If one of them is $1.7$, what will be the other number?

$3.8$

38.0

$0.38$

$0.038$