A. 6 days
B. 8 days
C. 10 days
D. 12 days
✅ The correct answer is option D. 12 days.
2 children = 1 man
2 children = 1 man
(8 children + 12 men ) = 16 men
Now, less men, more days
12 : 16 : 9 : x
x = 16×9/12=12 days
305. An umbrella marked at Rs. 80 is sold for Rs. 68. The rate of discount is:
A. 15%
B. 12%
C. 17 11/17%
D. 20 %
✅ The correct answer is option A. 15%.
341. (i). a2 – 7a + 12 = 0, (ii). b2 – 3b + 2 = 0 to solve both the equations to find the values of a and b?
A. if a < b
B. if a ≤ b
C. if the relationship between a and b cannot be established.
D. if a > b
✅ The correct answer is option D. if a > b.
339. The area of a square is 4096 sq cm. Find the ratio of the breadth and the length of a rectangle whose length is twice the side of the square and breadth is 24 cm less than the side of the square.
A. 18 : 5
B. 7 : 16
C. 5 : 14
D. None of these
✅ The correct answer is option D. None of these.
Let the length and the breadth of the rectangle be l cm and b cm respectively. Let the side of the square be a cm.
Let the length and the breadth of the rectangle be l cm and b cm respectively. Let the side of the square be a cm.
337. A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 25 m * 2 m * 0.75 m?
A. 24000
B. 23000
C. 22000
D. 25000
✅ The correct answer is option D. 25000.
25 * 2 * 0.75 = 20/100 * 10/100 * 7.5/100 * x
25 * 2 * 0.75 = 20/100 * 10/100 * 7.5/100 * x
The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is___________?
A. 35 years
B. 30 years
C. 40 years
D. None of these
✅ The correct answer is option C. 40 years.
333. A room is 4 meters 37 cm long and 3 meters 23cm broad. It is required to pave the floor with minimum square slabs. Find the number of slabs required for this purpose?
A. 485
B. 431
C. 391
D. 381
✅ The correct answer is option C. 391.
The current of a stream runs at the rate of 4 kmph. A boat goes 6 km and back to the starting point in 2 hours, then find the speed of the boat in still water?
A. 10 kmph
B. 21 kmph
C. 8 kmph
D. 12 kmph
✅ The correct answer is option C. 8 kmph.
A sum of Rs.4800 is invested at a compound interest for three years, the rate of interest being 10% p.a., 20% p.a. and 25% p.a. for the 1st, 2nd and the 3rd years respectively. Find the interest received at the end of the three years.
A. Rs.2520
B. Rs.3120
C. Rs.3320
D. Rs.2760
✅ The correct answer is option B. Rs.3120.
327. 60 + 5 * 12 / (180/3) = _______?
A. 60
B. 120
C. 13
D. 61
✅ The correct answer is option D. 61.