Mensuration Questions Practice Question and Answer
8 Q: A hemispherical cup of radius 4 cm is filled to the brim with coffee. The coffee is then poured into a vertical cone of radius 8 cm and height 16 cm. The percentage of the volume of the cone that remains empty is:
1509 05d70a88b56d6e076952aefba
5d70a88b56d6e076952aefba- 187.5%true
- 280.5%false
- 381.6%false
- 488.2%false
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Answer : 1. "87.5%"
Q: If radius and height of a cylinder increase by 20% and15% respectively. then what is the % change in curved surface area? 1479 05b5cc6b9e4d2b4197774d69e
5b5cc6b9e4d2b4197774d69e- 141%false
- 238%true
- 333%false
- 444%false
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Answer : 2. "38%"
Explanation :
Answer: B) 38% Explanation: % Change in Curved Surface Area is given by %Change in radius + %Change in height + %Change in radius × %Change in height 100 ⇒+20 + 15 + 20×15100 = 38%
Q: The ratio of inradius and circumradius of an equilateral triangle is:
1476 05d931b7d6819c079458b7c8b
5d931b7d6819c079458b7c8b- 11:2true
- 22:1false
- 3$$1: \sqrt { 2} \ $$false
- 4$$\sqrt { 2} \ :1 $$false
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Answer : 1. "1:2"
Q: The total area of a circle and a square is equal to 2611 sq.cm. The diameter of the circle is 42 cms. What is the sum of the circumference of the circle and the perimeter of the square?
1445 05d8608ccbd0b79109e784061
5d8608ccbd0b79109e784061- 1272 cmtrue
- 2380 cmfalse
- 3280 cmfalse
- 4Cannot be determinedfalse
- 5None of thesefalse
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Answer : 1. "272 cm"
Q: The area of two equilateral triangles are in the ratio 25 : 36 . Their altitudes will be in the ratio:
1444 05dd3da1ac2282c484e4715f1
5dd3da1ac2282c484e4715f1- 136 : 25false
- 225 : 36false
- 35 : 6true
- 4√5 : √6false
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Answer : 3. "5 : 6 "
Explanation :
the ratio will be squre root of triangle so that answer will be 5:6
Q: Ratio between areas of two squares is 36:25. What would be the ratio between their perimeter. 1432 05d1096b587e3540b926c1bc9
5d1096b587e3540b926c1bc9- 15:4false
- 26:5true
- 34:6false
- 48:7false
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Answer : 2. "6:5"
Explanation :
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Q: If the length and breadth of a rectangle are increased by 8 % and 12 % respectively, then by what percent does the area of that rectangle increase?
1429 05dc119e0b0e9c27a7e27c0ed
5dc119e0b0e9c27a7e27c0ed- 122%false
- 224%false
- 320%false
- 420.96 %true
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Answer : 4. "20.96 %"
Q: A square has a perimeter equal to 24 units. If the length of each side of the square is reduced by 2 units, then find the area( in sq units) of the square.
1410 05de49ab9848f4a29cf45b28c
5de49ab9848f4a29cf45b28c- 14false
- 29false
- 316true
- 425false
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