A man goes down stream with a boat to some destination and returns upstream to his original place in 8 hours. If the speed of the boat in still water and downstream are 12km/hr and 15km/hr respectively, the distance of the destination from the starting place in KMs is
Divide Rs. 21411 into 3 parts so that their amount after 2,3 and 4 years respectively may be equal, the rate of interest being 5% per annum at simple interest. The second part is
Let the parts be x, y and z
x + (x * 2 * 5/100) = y + (y * 3 * 5/100) = z + (z * 4 * 5/100)
11x/10 = 23y/20 = 6z/5 = k
x = 10k/11, y = 20k/23, z = 5k/6
But x + y + z = 21411
10k/11 + 20k/23 + 5k/6 = 21411
k = 8197.2
y= (20/23)*8197.2 = 7128
Option 4)
When A covers 500m B Covers 420m
When A Covers 500m C covers 480m
A : B = 500 : 420
A : C = 500 : 480
C/B = (C/A*A/B) = (480/470) = 480:420
When C covers 480 m, B covers 420 m.
When C covers 700 m, B covers (420/480)*1200)m = 612.5
Therefore, C beats B by (700 - 612.5) m = 87.5 m.
Jallaluddin went to buy 5 chocolates worth Rs. x. He gave Rs.200 rupee note to the shopkeeper to buy the chocolates then shopkeeper gave rest of the money in the denominations of 50 paise, 2 rupee, and 10 rupees. If the ratio of the number of coins is 18:13:9 respectively. Then what is the price of two chocolate?
Let a = the age of the younger brother now
a+6 = the age of the older brother now
given:
In 6 years:
a+6 = the age of the younger brother
a+6+6 = the age of the older brother
A person bought 110 glass bowls at a rate of Rs. 15 per bowl. He sold 101 of them at Rs. 17 and the remaining broke.
What is the percentage gain for A?
Initially two cups of same volume are present with milk filled upto 2/7th and 3/7th of their volumes. Water is then filled in both the cups (completely). Then two mixtures are mixed. Find the ratio of water to milk in the mixture?
Let the cups volume be x.
here we assume that water fills both volumes completely
after mixing , total milk is -> 2/7x + 3/7x = 5/7x
after mixing , total water is -> 5/7x + 4/7x = 9/7x
therefore water to milk ratio is (9/7)/(5/7) = 9:5
How much amount would a person receive if he invests a sum of Rs. 12500 at the rate of 6.5% of simple interest for 17 years in a bank. Please note that bank levies a charge of Rs. 75 on every fixed deposit.