Two swimmers start swimming towards each other in a river,starting from points A and B separated by 100mts and continue swimming between A nd B by reversing their directions when they reach the other end. When they meet at the first time the ratio of the distances covered by the first swimmer to that covered by second swimmer is 4:1. The speed of 1st swimmer nd 2nd in still water is 6m/s and 4 m/sec resp. At what distance from point A do they meet for the second time..??
A group of men was employed to shift 545 crates. Everyday after the
first, 6 more men than that on the previous day were put on the job.
Also, everyday after the first, each employed man, shifted 5 fewer
crates than the number of crates moved by each man on the previous day.
All workers shift an equal number of crates on any given day. It took
five days to finish the work. How many crates were moved on 3rd day?
f(x)=|x-2|+|2.5-x|+|3.6-x| where x is real. f(x) is minimum at?
pls help with the solution.
thanks in advance
While walking along the railway tracks from VT to thane, I observe that a train from VT to thane overtakes me every 10 mints and the train from thane to Vt passed me every 8 minutes. Train start form thane and VT terminals at the same regular frequency and run at the same speeds. If a person is sitting in the train from thane,with what frequency(after how many minutes) would a train from VT pass him..??
The interests on a sum under compound interest, when interest is compounded annually, for eighth and ninth years are Rs.1336 and Rs.1503 respectively. Find the rate of interest.
Ten cows can graze in a field for 15 days and twenty cows can graze in the same field for 10 days. For how many days can 30 cows graze in the field?
Hi fellows
Does anyone have byju's videos. If yes could u plz share IT withus. s
TIA
The distance between Talegaon and Lonavala is 17.5 km. Lakhoba starts from Lonavala on a cycle at a uniform speed towards Talegaon. After 15 minutes, Anandrao in his maruti car starts from same place towards Talegaon and overtakes Lakhoba after 10 minutes and without halting reaches Talegaon. Knowing that he forgot his important documents at home, Anandrao immediately turns back and starts towards Lonavala at same speed again meets Lakhoba still on his cycle exactly after 45 minutes from the start of Lakhoba's Journey from Lonavala. Find speed of maruti car and cycle respectively.
A natural number N is 100 times the number of its factors. Find the sum of the digits of N, given that N has only 2 prime factors??
Ashok and Raj start from city A for city B with different speeds. Ashok left city A one hour earlier than Raj, but Raj was fast and was able to catch up with Ashok in 2 hours after he left city A. But then Ashok increased his speed to Raj's speed and reached city B in next 5 hours, while Raj decreased his speed to that of Ashok's initial speed. What is the difference in time taken by them to cover the entire distance if the distance between A and B is 42 km?
Sachin and Sunil started with a speed of 40 km/hr and 18 km/hr respectively on their bikes for Patna at 8 a.m. from the same place. Sunil completed the entire journey with the same speed with which he had started. At 9:30 a.m., Sachin was stuck in traffic and had to reduce his speed. So in the next 30 minutes, he could cover only 15 km and covered the remaining distance with a speed equal in magnitude to the total time taken by Sunil in hours to cover the entire journey and reached Patna at the same time as Sunil and in broad daylight. At what time did both of them reach Patna?
Wine contains alcohol to water in the ratio 1 : 3 whereas whisky contains alcohol to water in the ratio 2 : 3. A person draws 10 litres of whisky from a bottle containing 100 litres of whisky and added 10 litres of wine. If he has done this 3 times, what is the ratio of alcohol to water in the resultant mixture? (Approximately)
Pitcher A of capacity 21 litres is full of alcohol and is connected to an empty pitcher C of capacity 100 litres by a pipe through which alcohol can pass at the rate of 11.2 litres per hour. Pitcher B of capacity 89 litres is full of water and is also connected to pitcher C by another pipe through which water passes at the rate of 17.5 litres per hour. If both pipes are opened together, what is the alcohol percentage in the solution in pitcher C when it starts overflowing?
A shopkeeper gives Rs 100 article to customer Rs 110 . customer again gives the same article back to the shopkeeper at 99 rs.
find loss/gain of shopkeeper and customer (both amount and %)??
One person had the habbit of spending money according to date of the day. i.e. on 11th he would spend 11 Rs., on 12th Rs.12 etc. At the end of one specific week, (Mon to Fri), He calculated the total amount spent. It was 61 Rs. Which were the dates?
x+y+z=18
How many integral solutions are possible?
(please explain in detail)
1/2!9! + 1/3!8! + 1/4!7! + 1/5!6! = N/10!.. Find N
find the remainder of
2^97 when divided by 107
if the three altitudes in a triangle are 8 cm, 15 cm and 17 cm.which of the following could be the inradius of the triangle?
a) 9 cm
b) 16 cm
c) 4 cm
d) none of these