## A bag contains 8 red marbles, 9 yellow marbles, 7 green marbles. How many additional red marbles added to the 24 marbles already in the bag that the red marbles is 3/5?

199 days agoSolve the marble mystery: Find out the precise quantity of extra red marbles necessary to tip the odds to a 3/5 chance of selecting red.

## Hugh bought some magazines that cost $3.95 each and some books that cost $8.95 each. He spent a total of $47.65. Let m represent the number of magazines, b represent the number of books.

199 days agoKnow the mathematical model for Hugh's purchases: $3.95 for magazines, $8.95 for books, totaling $47.65.

## Fiona bought some socks that cost $4.95 for each pair and some belts that cost $6.55 each. Fiona spent $27.95 in all. Let A represent the number of pairs of socks purchased.

199 days agoExplore Fiona's purchase: socks for $4.95, belts for $6.55. Unravel the mystery of her $27.95 spending.

## Person A and Person B can do a piece of work in 70 and 60 days respectively. They began the work together, but Person A leaves after some days and Person B finished the remaining work.

199 days agoExplore the productivity of Person A and Person B as they unite to tackle a task, only to encounter a twist when Person A decides to leave mid-project. Delve into the timeline of their endeavor and pinpoint the pivotal moment of departure.

## Two pipes A and B can fill a tank in 16 hrs and 12 hrs respectively. The capacity of the tank is 240 liters. Both the pipes are opened simultaneously and closed after 2 hrs.

199 days agoFind out the remaining capacity of a 240-liter tank after pipes A and B are turned off following a 2-hour concurrent operation.

## A tank is filled with water to a height of 12.5 cm. The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 9.4 cm. What is the refractive index..?

199 days agoExplore the depths of physics: uncover the refractive index of water. From a tank filled to 12.5 cm, gauge the needle's apparent depth at 9.4 cm to reveal its optical properties.

## Of all the fish in a certain river, 20 percent are salmon. Once a year, people can purchase a fishing license that allows them to catch up to 8 fish. Assume each catch is independent.

199 days agoDive into the statistics of salmon fishing in a river where only a fifth of the fish are salmon. Calculate the likelihood of needing all 8 catches to hook your first salmon.

## Sophie and Simon are peeling a pile of potatoes for lunch in the cafeteria. Sophie can peel all the potatoes by herself in 45 minutes, while it would take Simon 30 minutes to do the job working alone.

199 days agoJoin Sophie and Simon in the cafeteria as they team up to conquer a pile of potatoes. How fast can they peel them together?

## A cistern has 2 pipes, 1 can fill with water in 16 hours and other can empty it in 10 hours. in how many hours will the cistern be emptied if both the pipes are opened together ?

199 days agoA cistern has 2 pipes, 1 can fill with water in 16 hours and other can empty it in 10 hours. in how many hours will the cistern be emptied if both the pipes are opened together when 1/5th of the cistern is already filled with water?

## Some Mangoes are purchased at the rate of 8 mangoes/Rs and some more mangoes at the rate of 6 mangoes/Rs, investment being equal in both the cases.

199 days agoExplore the profitability of mango investments! Buy some at 8 mangoes/Rs and others at 6 mangoes/Rs. Find out the net percentage profit/loss when sold at 3.5 mangoes/Rs.