Maths Practice Question and Answer
8 Q:Directions : What will come in the place of the question mark (?) in the following number series?
60.75, 40.5, 27, 18, 12, ?
1695 05e93e66e3d193e3bf6fddb9e
5e93e66e3d193e3bf6fddb9e- 112false
- 28true
- 36.5false
- 48.5false
- 56false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "8"
Q: If three numbers are in the ratio 2:3:5 and the twice their sum is 100. Find the square of the largest of the three numbers.
1695 06073fb3836363c0f94b86650
6073fb3836363c0f94b86650- 1225false
- 2625true
- 325false
- 4100false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "625"
Q: In an examination, 92% of the students passed and 480 students failed. If so, how many students appeared in the examination?
1695 064cce0cd8f85ca71558f105f
64cce0cd8f85ca71558f105f- 15800false
- 26200false
- 36000true
- 45000false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "6000"
Explanation :
Let's denote the total number of students who appeared in the examination as 𝑥x.
Given that 92% of the students passed, it means 8% failed because the total percentage is 100%.
We can set up the equation:
8% of 𝑥=4808% of x=480To find 8% of 𝑥x, we multiply 𝑥x by 81001008 (which is the same as multiplying by 0.08):
0.08𝑥=4800.08x=480Now, we can solve for 𝑥x:
𝑥=4800.08x=0.08480𝑥=6000x=6000So, 6000 students appeared in the examination.
Q: In the figure given below, PT=6 cm and PA=4 cm. What is the length of AB?
1695 0602272d02dc71d4148a1bc2e
602272d02dc71d4148a1bc2e- 19 cmfalse
- 25 cmtrue
- 34 cmfalse
- 46 cmfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "5 cm"
Q: When 3738, 5659 and 9501 are divided by the greatest possible number x, the remainder in each case is y. What is the sum of x and y?
1695 06051c3b8d3e3d30b29d9950d
6051c3b8d3e3d30b29d9950d- 13783false
- 23637false
- 33673false
- 43738true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "3738"
Q: 60% boys are failed in History and 65% boys are failed in Geography while total 30% boys are failed in both the subjects. If total 1200 boys appeared in the examination then total how many boys are passed?
1694 060af74cdd752621d4fa2d58a
60af74cdd752621d4fa2d58a- 1560false
- 2660true
- 3330false
- 4400false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "660"
Q: The length of a rectangle is 6 cm more than its width and its perimeter is 100 cm. If the area of this rectangle is closest to the area of a circle, then what is the circumference of that circle?
1694 0602e05409f2a38430909bb32
602e05409f2a38430909bb32- 1110 cmfalse
- 2132 cmfalse
- 366 cmfalse
- 488 cmtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "88 cm"
Q: The volume of a cube is $$ 512{cm}^{3}$$. Its surface area (in sq cm) is
1694 05ec5f91f977d8b0224abecfd
5ec5f91f977d8b0224abecfd- 1284false
- 2384true
- 3484false
- 4576false
- Show AnswerHide Answer
- Workspace
- SingleChoice