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# Math News

## The average weight of A, B and C is 45 Kg. If the average weight of A and B be 40 Kg and that of B and C be 43 Kg, weight of B is

1 day agoTo find B's weight, use the given average weights of A, B, and C and set up equations to solve for B's specific weight.

## What's the Area of the smallest square that fits inside a larger square ABCD with sides of 20 m?

2 days agoTo find the area of the smallest square inside square ABCD with 20 m sides, identify its side length and calculate its area using geometric principles.

## Find the Speed of the Stream for a boat that travels 30 km upstream and back downstream in 4 hours 30 minutes with a speed of 15 km/hr

4 days agoTo determine the speed of the stream, calculate the boat's time and speed both upstream and downstream, then use these results to find the speed of the stream.

## If a Regular Hexagon is inscribed in a Circle of radius r then its Perimeter is

7 days agoTo find the perimeter of a regular hexagon inscribed in a circle with radius r, note that each side of the hexagon equals the radius r.

## Find the Sum of Odd numbers between 0 and 50?

8 days agoTo find the sum of odd numbers between 0 and 50, identify the sequence's arithmetic progression (AP) and apply the sum formula for an AP.

## How many 2-Digit Positive Integers are Divisible by 4 or 9?

8 days agoTo determine the count of 2-digit positive integers divisible by 4 or 9, analyze divisibility for each and use inclusion-exclusion principles.

## What's the maximum number of Cartons each stack can hold if there are 144 Cartons of Coke and 90 Cartons of Pepsi?

9 days agoTo find the maximum number of cartons each stack can hold for 144 cartons of Coke and 90 cartons of Pepsi, use the HCF or GCD method.

## What is the Probability of randomly Selecting a Three-Digit number where all Three Digits are the Same?

10 days agoTo find the probability of randomly selecting a three-digit number where all three digits are the same, count the numbers meeting this criterion.

## Find the Wrong Number in the Series 1, 2, 6, 15, 31, 56, 91

14 days agoTo identify the incorrect number in the series 1, 2, 6, 15, 31, 56, 91, analyze the differences between consecutive terms to find a pattern.

## Find the longest tape that can measure the room dimensions of Length 825 cm, Breadth 675 cm, and Height 450 cm

14 days agoTo determine the longest tape needed to measure room dimensions of length 825 cm, breadth 675 cm, and height 450 cm, find their highest common factor (HCF).

## n2 - 1 is Divisible by 8 if n is

15 days agoDetermining conditions for n2 - 1 to be divisible by 8 for odd positive integers n, find algebraic expressions and patterns in number theory.

## What is 30% of 950?

15 days agoTo calculate 30% of 950, you multiply 950 by a division of 30 by 100, which will give the exact percentage value for this problem.

## Determine the Smallest 3-Digit number which is exactly Divisible by 6, 8 and 12

17 days agoTo find the smallest 3-digit number divisible by 6, 8, and 12, calculate their least common multiple (LCM) and then find the smallest multiple within the 3-digit range.

## What Percent of 25 is 12?

17 days agoTo find what percent 12 is of 25, divide 12 by 25 and multiply the result by 100. This will give the exact percentage value for this problem.

## All-Purpose Flour costs $0.53/lb. How much would 4.5 lb of Flour cost?

17 days agoTo find the cost of 4.5 pounds of all-purpose flour priced at $0.53 per pound, multiply the cost per pound by the number of pounds, which will give the total price.

## What is 75 Percent of 124?

18 days agoTo find 75 percent of 124, you need to multiply 124 with the percentage of 75. This method helps in determining a portion of a number based on a given percentage.

## The Tax on a Commodity is diminished by 20% but its consumption is Increased by 10%. Find the Decrease Percent in the Revenue derived from it?

18 days agoTo find the decrease in revenue when the tax on a commodity is reduced by 20% and its consumption increases by 10%, use the formula for percentage change in revenue.

## If the Simple Interest on a Sum of Money for 2 Years at 5% per annum is Rs.50, What will be the Compound Interest on same values?

20 days ago## A Man can do a piece of work in 60 hours. If he takes his Son with him and both work together then the work is finished in 40 hours. How many hours will the son take to do the Same Job, If he worked alone on the job?

21 days agoTo find out how long the son would take to complete the job alone, consider the rates at which both the man and his son work together and separately.

## If the Sum of two numbers is 55 and the H.C.F. and L.C.M of these numbers are 5 and 120 respectively, then the Sum of the Reciprocals of the numbers is equal to

21 days agoTo find the sum of the reciprocals of the two numbers with given properties, use their sum, HCF, and LCM to calculate the expression accurately.

## What will be obtained if 8 is Subtracted from the HCF of 168, 189, and 231?

22 days agoTo find the result of subtracting 8 from the HCF of 168, 189, and 231, first determine the HCF and then perform the subtraction to get the final answer.

## What least number must be added to 1056, So that the Sum is completely divisible by 23?

22 days ago## If a number is exactly Divisible by 85, then what will be the Remainder when the same number is Divided by 17?

22 days agoTo determine the remainder when a number exactly divisible by 85 is divided by 17, check out the steps and solutions that are provided below.

## A Sum of Rs.900 amounts to Rs.950 in 3 years at Simple Interest. If the interest rate is increased by 4%, it would amount to how much?

23 days ago## Find the Speed of the train, If a train 120m Long passes a Pole in 8 seconds

23 days agoTo find the speed of a train passing a pole in 8 seconds, given its length of 120 meters, use the formula for speed, and then find the speed of the train.