aks26489

@aks26489

shivanisagalife
@shivanisagalife
A group of soldiers was put on a job. On second day, the Lieutenant, realizing the urgency of the work, put in 6 more soldiers. Due to further pressure, workforce had to be increased by 6, each subsequent day and the job ultimately was completed in as many days as the number of soldiers in t...
aks26489
Akshay Nayak @aks26489

if the number of days taken is 3...and we assume 1unit of work...

total work done on 3 days = 3+9+15 = 27

if no worker was added it would take 3*9 days which is thrice the amount of the original days...

kam15
kamalika poddar @kam15
Two swimmers start from opposite end of the swimming pool. Both swimmers are swimming at constant speeds. When they cross each other for the first time, they are 25 m from nearest side. They reach their respective ends and on second round they meet at a distance of 20 m from the other end. What i...
divyamhjn
divya mahajan @divyamhjn
if A=(105)^19 and B=100^20 Which of the following is true. A=b A>B A<B
aks26489
Akshay Nayak @aks26489

B>A, dividing both sides by 100^19...we have 1.05^19 and 100...

divyamhjn
divya mahajan @divyamhjn
if m is an integer divisible by 6 not by 4 and n is an integer divisible by 5 but not by 3 then which of the following must be an integer 1)(4n+6m)/36 2)(3m +2n)/4 3)(5m +6n)/30 4)(m^2 +n^2)/11
sana9sharma2
Sana Sharma @sana9sharma2
if p times the pth term in an arithmetic progression is equal to q times the qth term,what is the the (p+q)th term, where p are q are unequal?
aks26489
Akshay Nayak @aks26489

let p=3, q=6

3(a+2d) = 6(a+5d)

a= -8d

(p+q)th term = 9

a+8d = -8d+8d=0

prwzsandhu
@prwzsandhu
4 digit number has number of factors=15. Find number of factor of its square?
aks26489
Akshay Nayak @aks26489

3^4*5^2 = 2025, factors 15

3^8*5^4, factors = (8+1)*(4+1) = 45

coolkalra
Noname IIM @coolkalra
A watermelon contains 85% water. 30 g of water evaporates from the watermelon and now it contains 80% water, what was the original weight of the watermelon
aks26489
Akshay Nayak @aks26489

@shawshanks could you explain the RHS of your 1st equation ? 

KPuy
K @KPuy
If (1.8,2.4), (5,0) and (0,0) are the vertices of a triangle, then what are the co-ordinates of its orthocentre?
aks26489
Akshay Nayak @aks26489

in a right angled triangle the orthocenter lies on the point which contains the right angle.

ajaykr66
Ajay Kumar @ajaykr66
A train travels at a uniform speed of 25 km/hr. If the speed had been 15 km/hr more, it would have taken 8 hours less to cover the distance between stations A and B. What is the distance (in km) between A and B? *a. * 100 *b. * 300 *c. * 250 *d. * 200
aks26489
Akshay Nayak @aks26489

25t = 40(t-8)

t= 320/15

d = 25*320/15 = 1600/3

tanyaiskool
Tanya Gupta @tanyaiskool
There are five boxes in a cargo hold. The wt of the first box is 200kg, 2nd is 20%higher than the wt of the 3rd whose wt is 25% higher than the wt of the first box. The 4th box is 350 kgs and is 30% lighter than the fifth box. find the difference In the avg wt of the heaviest 3 and the lightest 3?
aks26489
Akshay Nayak @aks26489

yes, i saw that and deleted the wrong comment..i worked it out again and got the answer as 400/3, which is wrong as per the OA. (y)