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For 1:2:4 ratios the weight of cement is 50 kg then how many kg are the weight of sand and aggregate?
sam and mala have a conversation. sam says i am vertainly not over 40. mala says i am 38 and you are atleast 5 years older than me. Now sam says you are atleast 39. all the sattements by the two are false. How hold are they realy.
What is the probability of getting a sum 9 from two throws of a dice?
a man covered 28 steps in 30 seconds but he decided to move fast and covered 34 steps in 18 seconds. how many steps are there on the escalator when stationary.
12 Blacksox and 12 Whitesox mixed in a box,a pair of sox is picked at a time,in which pick how many pick ,to get the right pair(black&black or white&white)?
In a typical motor cycle rally, every motor cycle has to reach a speed of 20 m/min within a minute and it increase its speed by 20 m/min and the sum was 1600 m/min. Four minutes later, a new motor cyclist started running in the race. After another two minutes, the motor cyclist with the speed of 400 m/min stopped due to injuries and again two new motor cyclist started running in the race. What is the current average speed?
Fathers age is 5 times his son's age. 4 years back the father was 9 times older than son.Find the fathers' age.
Two trains 100 meters and 120 meters long are running in the same directions with speed of 72 km/hr and 54 km./hr. in how much time will the first train cross the second?
A person travels 6km towards west, then travels 5km towards north ,then finally travels 6km towards west. Where is he with respect to his starting position?
The diameter of a circle is 21 metres. It will take how many revolutions to cover a distance of 6.6 km?
How many mashes are there in a sq. m of wire gauge. Each mesh being 8mm long X 5mm width
f(x) = 10x3 + ax2 + bx – 63. If f(-1) = -8 and one of the factors of the given equation is 2x + 3, then find the values of 'a' and 'b'.
A man drives at a speed of 40 miles/hr. His wife left 30 mins. late with 50 miles/hr speed. when will they meet ?
If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain?
9 cards are there. you have to arrange them in a 3*3 matrix. cards are of 4 colours.they are red,yellow,blue,green. conditions for arrangement: one red card must be in first row or second row.2 green cards should be in 3rd column.Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. At least one green card in each row.