Practice Question and Answer
8Q: In what ratio should two varieties of tea at Rs. 60 per kg and Rs.120 per kg be mixed together so that by selling the mixture at Rs.96 per kg, a profit of Rs.20% is obtained ? 1444 05b5cc7abe4d2b4197775074a
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Answer :
Explanation :
Let us first calculate the cost of price of the mixture. the selling price of the mixture is given as Rs.96 and the profit is given as 20%. So, Cost price = 100120×96 = Rs. 80 Now, let us apply allegation method : = 40 : 20 = 2 : 1
Q: A man travelled a distance of 80 km in 7 hours partly on foot at the rate of 8 km per hour and partly on bicycle at 16 km /hr. Find the distance travelled on foot ? 829 05b5cc7abe4d2b41977750749
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Answer :
Explanation :
Let the Journey on foot be x km Journey on cycle = (80 – x) km ∴x8+80-x16= 7 => x = 32km Therefore, Distance covered on foot in 4 hrs = ( 4 x 8) = 32 km
Q: A sum of Rs.118 was divided among 50 boys and girls such that each boy received Rs.2.60 and each girl Rs.1.80. Find the number of boys and girls ? 7331 05b5cc7abe4d2b41977750748
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Answer :
Explanation :
Average money received by each = 118/50 = Rs. 2.36 Therefore, Ratio of No.of boys and girls = 56 : 24 = 7 : 3 Therefore, Number of boys = 50 x (7/10) = 35 Number of girls = 50 - 35 = 15
Q: In what proportion water must be added to spirit to gain 20% by selling it at the cost price ? 2733 05b5cc7abe4d2b41977750747
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Answer :
Explanation :
Let the C.P of spirit be = Rs.10 per litre Then S.P l litre of the mixture = Rs. 11 Profit = 20% Therefore, C.P of the mixture = Rs. 100120×10 = Rs. 25/3 per litre Therefore, Ratio of water and spirit = 1 : 5
Q: How many kilometers and represented by 1oof latitude? 1292 05b5cc7abe4d2b41977750742
5b5cc7abe4d2b41977750742- 1321 kmfalse
- 2211 kmfalse
- 3111 kmtrue
- 491 kmfalse
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Answer : 3. "111 km"
Explanation :
Answer: C) 111 km Explanation:
Q: The earth is at its maximum distance from the Sun on : 2219 05b5cc7abe4d2b4197775073d
5b5cc7abe4d2b4197775073d- 1January 30thfalse
- 2December 22ndfalse
- 3September 22ndfalse
- 4July 4thtrue
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Answer : 4. "July 4th"
Explanation :
Answer: D) July 4th Explanation:
Q: The planet that takes 88 days to make one revolution of the sun is __________ 1518 05b5cc7abe4d2b41977750738
5b5cc7abe4d2b41977750738- 1Mercurytrue
- 2Saturnfalse
- 3Jupiterfalse
- 4Marsfalse
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Answer : 1. "Mercury"
Explanation :
Answer: A) Mercury Explanation:
Q: Light - year measures which of the following ? 1465 05b5cc7abe4d2b41977750733
5b5cc7abe4d2b41977750733- 1Intensity of Lightfalse
- 2Massfalse
- 3Distancetrue
- 4Timefalse
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Answer : 3. "Distance"
Explanation :
Answer: C) Distance Explanation: