Payal and pooja complete a work in 14 days doing together if payal works for 3.5 days and pooja for 9.5 days, they finish half work. In how much time pooja alone complete the work? a) 20days b) 23days c) 22days d) 24days Sol: 3.5 days Payal + 9.5 days Pooja=half work 3.5 days Payal […]
The distance between PQ is 203 km. two boats A and B start moving towards each other at the same time from point P and Q respectively. B is upstream and other is downstream. If speed of A and B in still water is 11.4km/hr. and 17.6km/hr. respectively. Then in how much time they will
In the given figure, ‘ O’ is the centre of circle and AB = BC and ∠AOB = 90°, then ∠a is. a) 35° b) 55° c) 45° d) 65° Sol: ∆AOB ∆COB AB = BC AO = CO OB = common ⇒ ∠BOC = 90° as ∠AOB = 90° ⇒ AC = diameter ⇒
In the given figure, ‘ O’ is the centre of circle and AB = BC and ∠AOB = 90°, then ∠a is Read More »
When ‘ a’ is subtract from each of 21, 38, 55, and 106, then the numbers obtained in this order, are in proportion. What is the mean proportional between (8+a) and (a-1)? a) 7 b) 6 c) 8 d) 4 Sol:
Train A takes 35 minutes more than train B to travel a distance of 460 km. Due to engine trouble speed of train B falls by a quarter, so it takes 30 minutes more than train A to complete the same journey. What is the speed of train A (in km/hr)? a) 110 b) 90
Neeraj purchased two articles at same cost price. He sold one article at a profit of 17% and second article at 816 Rs more than the fi rst article. If the net profit is 23% then find the cost price of each article? a) 7200Rs b) 6600Rs c) 7000Rs d) 6800Rs Sol:
Chiru while walking diametrically across a semi-circular playground takes 6 min less than if he had kept running around the circular path from P to Q. If he run 25 meter in 50 sec. what is the radius of the playground? a) 155.5 m b) 156.5m c) 157.5 m d) 158.5 m Sol:
A person borrowed a certain sum at 10% p.a. for three years, interest being compounded annually. At the end of two year, he repaid a sum of Rs. 5513 and at the end of third year, he cleared off the debt by paying Rs. 14300. What was the sum borrowed by him? a) 15200 b)
∆ABC ~ ∆PQR and area ΔABC/area ΔPQR=16/9. If PQ = 18 cm and BC = 12 cm, then AB and QR are respectively. a) 9 cm, 24 cm b) 24 cm, 9 cm c) 32 cm, 6.75 cm d) 13.5 cm, 16 cm Sol:
By selling two articles for 600, a person gains the cost price of three aricles. The profit percent i s? a) 120 b)140 c) 150 d) 125 Sol: 2SP – 2CP = 3CP 2SP = 5 CP
