Maths MCQs

From point P, X walks at a speed of 12 Km/hr and 6 hours after his start, Y also starts walking from same point P on his cycle after him at the speed of 16 km/hr. How far from the starting point P will Y catch X? a) 224 kmb) 288 kmc) 256 kmd) 324 […]

Question: If the cost price of 6 pens is the same as the selling price of 5 pens, find the profit/loss percentage. Answer: 1. 20% profit Solution: cost price be c. selling price be s.6c=5sprofit = (6c/5 – c)/100=20 percent profit

Question: The marked price of an article is 60 percent more than its cost price. If 20 percent discount is given, then what will be the profit percentage? Answer: 1. 28 percent Solution: marked price= 1.6 times cost pricem=1.6 cs(selling price)= m-m(0.2)s=0.8 m = 0.8(1.6)cprofit = (s-c)/c=0.28percentage 28 percent

The marked price of a chair is 10 percent more than its cost price. If the chair is sold for Rs 132 after a discount of Rs 11, then what will be the profit percentage? a) 1.53 percentb) 1.78 percentc) 2 percentd) 1.21 percent Ans : a) 1.53 percent SSC Constable GD Paper 21 Feb

Question: What is the curved surface area of a cylinder having radius of base as 70 cm and height 14 cm ? Answer: 1. 6160 Solutions: csa=2(3.14)r X h=6154 nearest answer 6160

A mixture contains acid and water in the ratio of 7 : 4. If 2 liters of water is added to it, then the ratio of acid and water becomes 7 : 5. What is the quantity of acid in the mixture. a) 14 liters b) 7 liters c) 20 liters d) 21 liters Ans

Question : Radius of sphere is increased by 50 percent. What will be the percentage increase in its volume?प्रश्न: एक गोले की त्रिज्या 50 प्रतिशत बढ़ जाती है। इसकी आयतन मात्रा में कितने प्रतिशत की वृद्धि होगी? Answer: 3. 237.5 percent Solution:Volume = $ \frac 43 \pi r^3$r = Radius From above formula : volume

Question: Marked price of a chair is Rs. 2000. After giving two successive discounts of 20 percent and x percent, the chair is sold for Rs. 1400. What is the value of x? Answer: 12.5 percent Solutions: bulding equation selling price after 1 st dsicount 2000-0.2(2000)=1600building equation after x discount1600-(0.01)x1600=1400200=0.01(x) 16001/8=12.5 percent

Question: If M:N=9:6, then what is the value of (M+N):(M-N)? Answer: 3. 5:1 Solution: (M+N):(M-N)Dividing it by N on denominator as well as numeratorM/N=x=9:6=3:2(M+N):(M-N)=(x+1)/(x-1)=2.5/.5=55:1

Evaluate: {(175×72/24+5)x20}/2 1. 58002. 43003. 53004. 4850 Answer: 3. 5300 Solution: Applying BODMAS RULE {(175×72/24+5)x20}/2{(175×3+5)x20}/2{(525+5)x20}/2{(530)x20}/2{10600}/25300