The HCF of two numbers is 11 and their sum is 132. If poth the numbers are greater than 42, then the difference between the two numbers is :
Vipul invests a sum of INR 5400 and Vijay invests a sum of INR 9400 at the same rate of simple interest per annum.If, at the end of 5 years , Vijay gets INR 840 more interest than Vipul, then find the rate of interest per annum. (in percentage).
A man goes to Ahmedabad from Kolkata at a speed of 9km/hr and returns to Kolkata at speed of 18km/hr, through same route. What is his average speed (in km/hr) of the entire journey?
A student was getting the following four offers on the purchase of a book:
I - Two successive discounts of 20% and 20%
Il - Two successive discounts of 25% and 15%
Ill - Two successive discounts of 30% and 10%
IV - Two successive discounts of 5% and 35%
Which scheme offers the most discount to the student?
The average wight of Gopal, Akshay and Athul is 46kg. If the average weight of Gopal and Akshay be 40 kg and that of Akshay and Athul be 45 kg. Then the weight of Akshay (in kg) is :
A dishonest shopkeeper promises to sells his goods at cost price. However he uses a weight that actually weighs 46% less than what is written on it.Find the profit.
Two cones have their heights in the ratio 4:3 and the radii of their bases in the ratio 1:2. Find the ratio of their volumes.
A can do a piece of work in 32 days and B in 48 days. They work together for 8 days and then A goes away.In how much time (in days) will B finish the 60% of the remaining work?
The price (per litre) of petrol increases by 85%. By what percent should its consumption be reduced such that the expenditure on it increase by 48% only ?
Two trains having lengths of 210m and 140m are running at speed of 80 km/h and 150 km/h respectively, in the same direction. The time taken (in minutes) by the faster train, coming from behind, to completely cross the other train is :
Two numbers are in the ratio 4:9, If the mean proportional between them is 24, Find. the positive difference between the two numbers.
Mandar has two grandsons Ketan and Tushar. 11 years old Ketan gets some money From Mandar's wealth and 12 year old Tushar gets the rest of the money.But Ketan and Tushar will get the money only when they tunrs 22 years old. Till then the money is in a bank getting interest at rate 8% compounded annually. When both turn 22, they receive the same amount. How much had Mandar given Tushar (in INR) initially, If total money with Mandar was INR 24700?
If at same rate of interest , in 2 years the simple interest is INR 42 and compound interest is INR 51, Then what is the principal (in INR) ?
A number is first decreased by 15% and then increased by 20%. The number so obtained is 78 more than the original number. The original number is :
In an examination there where 3 papers of Mathematics , two papers of english and one paper of science. All papers where of 100 marks. S got 60% in Mathematics , 70% in English and 50% in Science. What was the percentage of marks in all papers ?
What will come in the place of question mark (?) in the following equation , if '÷' and 'x' are interchanged and '+' and '-' are interchanged ? 50 - 9 ÷ 1 + 63 x 7 = ?
Which is learning strategy that can be used to give direct experience to the children associated with Mathematics in various work place ?
The most suitable method for developing disciplinary values in children through the learning of Mathematics is :
"The sum of two consecutive natural numbers is always an odd number". Which is the learning method suitable to understand this in a primary class ?
The variance of a set of numbers is 33. If each number is multiplied by -1 and then 1 is added to each number, What is the new variance ?