The Total cost of flooring a room at Rs.8.50 per square meter is Rs.510. If the length of the room is 8km it’s breadth is__________?
A. 7.5m
B. 8.5m
C. 10.5m
D. 12.5m
A. 7.5m
B. 8.5m
C. 10.5m
D. 12.5m
A. 8/15, 9/13, 6/11
B. 8/15, 6/11, 9/13
C. 9/13, 6/11, 8/15
D. 6/11, 8/15, 9/13
Explanation:
The fractions considered are 8/15 9/13 6/11
To compare them we make the denominators the same. So the fractions are
(8 * 13 * 11)/2145, (9 * 15 * 11)/2145 and (6 * 15 * 13)/2145
1144/2145, 1485/2145 and 1170/2145
so in descending order the fractions will be
1485/2145, 1170/2145 and 1144/2145 i.e., 9/13 , 6/11 , 8/15
A. 312.73
B. 373.12
C. 337.12
D. 339.12
Explanation:
? = 43/100 * 784 = 337.12
A. Rs. 1505
B. Rs. 1510
C. Rs. 1500
D. Rs. 1490
E. None of these
Explanation:
Let the cost price of an article be Rs. x.
(19% of x) – (12% of x) = 105
19x/100 – 12x/100 = 105 => 7x = 105 * 100
=> x = 1500
Cost price = Rs. 1500
A. 7/12
B. 5/9
C. 1/36
D. 5/12
Explanation:
No two dice show same number would mean all the three faces should show different numbers. The first can fall in any one of the six ways. The second die can show a different number in five ways. The third should show a number that is different from the first and second. This can happen in four ways.
Thus 6 * 5 * 4 = 120 favourable cases.
The total cases are 6 * 6 * 6 = 216.
The probability = 120/216 = 5/9.
A. 0
B. Rs. 2
C. Rs. 1.93
D. Rs. 7.20
Explanation:
Sale after 40% discount = 60% of Rs. 500 = Rs. 300
Price after 36% discount = 64% of Rs. 500 = Rs. 320
Price after next 4% discount = 96% of Rs. 320 = Rs. 307.20
Difference in two prices = Rs. 7.20
A. 1:3
B. 2:3
C. 3:4
D. 4:5