The ratio between the present ages of P and Q is 5:7 respectively. If the difference between Q's present age and P's age after 6 years is 2, what is the total of P's and Q's present ages?
Present ages of P and Q
= 5x years and 7x years
Then 7x  (5x + 6) = 2
2x = 8
∴ x = 4
∴ Required sum = 5x + 7x = 12x
= 12 x 4 = 48 years
What is the ratio of the areas of two circles whose radii are in the ratio 1:2 ?
Let radius of one circle is x
So radius of other is 2x
Ratio of area = πx^{2}/π(2x)^{2}
= πx^{2}/π4x^{2} = 1/4 = 1 : 4
sin α = x/y , cos α = a/b , cot α =
Value of the following is cos^{2}30^{o} + tan^{2}60^{o} − 3/4 sin^{2}45^{o} + cosec^{2}30^{0}
54.327×357.2×0.0057 is the same as :
If + means ÷, × means , ÷ means × and  means +, then
8 + 6 × 4 ÷ 3  4 = ?
Given expression : 8 ÷ 6  4 × 3 + 4 = 4/3  4 × 3 + 4 = 4/3 12 + 4 =  20/3
The ignition temperature of white phosphorus is :
Which is the no. that comes next in the Series?
8, 15, 36, 99, 288, ?
8 + 7 x 1 = 15
15 + 7 x 3 = 36
36 + 7 x 3^{2} = 99
36 + 7 x 3^{3} = 288
So, 28 + 7 x 3^{4} = 855
A number is multiplied by 5 and 25 is added to it.The result is divided by 5 and the original number is subtracted from the same.The remainder will be
Let the number be x Then,
Remainder
A sum of Rs. 1550 was lent partly at 5% and partly at 8% simple interest. The total interest received after 3 year is Rs.300. The ratio of money lent at 5% to that at 8%
Let the sum lent at 5% be x and 8% be 1550  x
⇒ 15x + 37200  24x = 30000
⇒ 7200 = 9x
⇒ x = 800
⇒ 1550  x = 750
Ratio = 800 750 = 16 15
i.e. 16 : 15
7500 + (1250 ÷ 50) = ?
, then the value of x is:
The least number by which 2 x 6 x 7 x 7 should be multiplied so as to make it perfect square is
The distance between two cities A and B is 330 km. A train starts from A at 8 a.m. and travels towards B at 60 km/hr. Another train starts from B at 9 a.m. and travels towards A at 75 km/hr. At what time do they meet?
The two trains meet x hrs after 8 a.m.
Distance covered by 1st train in x hrs + Distance covered by 2nd train in (x  1) hrs = 330 km
60x + 75 (x  1) = 330
60x + 75x  75 = 330
x = 405/135 = 3
So, they will meet 3 hrs past 8 a.m. i.e., 11 a.m.
Seven basketball matches were played between the 2 finalists, during National Basketball Competition. After the match, 9 players (spectators inclusive) were being interviewed. One or more players were interviewed from the teams viz. Andhra Pradesh, Tamil Nadu, Gujrat, Madhya Pradesh, Uttar Pradesh, Maharashtra, West Bengal, Bihar, Bihar and Orissa. The name of the team is also denotes the name of the state team. Additional information about the interviewee is as follow.
→ Each player has unique jersey number.
→ David Disouza with jersey number 31 plays for Andhra Pradesh and is also known as a 3 point shooter.
→ Rajeev Sinha with jersey number 23 is the eldest player and Subhash Divyundu is the heaviest player in National Basketball Competition.
→ Sachdev Sharma has jersey number 30, while Jayesh Patel has 40.
→ Rahul Jha is one of he dunkers and he is from ‘West Begal’.
→ The player from Uttar Pradesh and a Tamil Nadu have a single digit jersey number.
→ Both the players with jersey number 40 and 34 play for Gujrat.
→ Rahul Jha was interviewed after Ramesh Naydu, but wasn’t the last person to be interviewed.
→ Both the players from Tamil Nadu and the players from Gujrat and Orissa were interviewed one after the other, and so were the players from Uttar Pradesh, Maharashtra and West Bengal, and in that order.
→ Jersey (23) plays for Bihar.
→ The heaviest player with jersey number 34 plays for Orissa.
→ Ramesh Naydu is a ‘passer’ for Andhra Pradesh.
→ Player from Madhya Pradesh was interviewed 5th.
→ Jersey number 2 and 3 were the only single digit jerseys.
Q. Who wears jersey number 40?
Seven basketball matches were played between the 2 finalists, during National Basketball Competition. After the match, 9 players (spectators inclusive) were being interviewed. One or more players were interviewed from the teams viz. Andhra Pradesh, Tamil Nadu, Gujrat, Madhya Pradesh, Uttar Pradesh, Maharashtra, West Bengal, Bihar, Bihar and Orissa. The name of the team is also denotes the name of the state team. Additional information about the interviewee is as follow.
→ Each player has unique jersey number.
→ David Disouza with jersey number 31 plays for Andhra Pradesh and is also known as a 3 point shooter.
→ Rajeev Sinha with jersey number 23 is the eldest player and Subhash Divyundu is the heaviest player in National Basketball Competition.
→ Sachdev Sharma has jersey number 30, while Jayesh Patel has 40.
→ Rahul Jha is one of he dunkers and he is from ‘West Begal’.
→ The player from Uttar Pradesh and a Tamil Nadu have a single digit jersey number.
→ Both the players with jersey number 40 and 34 play for Gujrat.
→ Rahul Jha was interviewed after Ramesh Naydu, but wasn’t the last person to be interviewed.
→ Both the players from Tamil Nadu and the players from Gujrat and Orissa were interviewed one after the other, and so were the players from Uttar Pradesh, Maharashtra and West Bengal, and in that order.
→ Jersey (23) plays for Bihar.
→ The heaviest player with jersey number 34 plays for Orissa.
→ Ramesh Naydu is a ‘passer’ for Andhra Pradesh.
→ Player from Madhya Pradesh was interviewed 5th.
→ Jersey number 2 and 3 were the only single digit jerseys.
Q. If David Disouza was the first to be interviewed, who could not be interviewed 2nd?
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