aks26489

@aks26489

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)

karamba
arun sundar @karamba
There are two numbers P and Q such that their GM is 20% lower than their AM. Find the ratio between the numbers. (1) 3:2 (2) 8:1 (3) 2:1 (4) 4:1
karamba
arun sundar @karamba
Ramesh agrees to work at the rate of one rupee on the first day, two rupee each day for the next two days, three rupee each day for thenext three days and so on. How much will he get if he stats working on the 1st of the month and finished on the 21st of the month? (1) 55 (2) 91 (3) 78 (4) N...
tanyaiskool
Tanya Gupta @tanyaiskool
A covers 1/3rd of his journey by cycle at 50kmph, the next 1/3rd by car at 20kmph and the rest by walking at 7kmph. Find his average speed during the whole journey?
aks26489
Akshay Nayak @aks26489

if we assume total distance as 150km,

t1 = 50/50 = 1hr,

t2 = 50/20 = 2.5hr

t3 = 50/7 = 7.14hr

avg speed = total dis/total time = 150/11.64 = 14.09.

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

yup, my bad...i read it wrong...one of the many reasons i rarely cross the QA sectional..