The following data is available for the monsoon season of the Hyderabad racing club. The data is for a total of y days. (i) There were races on 11 days − morning or evening. (ii) Whenever there was a race in the morning, there was no race in the evening. (iii) There were 8 mornings without any race. (iv) There were 5 evenings without any race. What is the value of y?
how many factors of n =2^5 *3^5 * 5^5 * 7^5 end with 2 zeroes?
- 625
- 484
- 576
- 288
- None of these?
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X Y and Z can together complete a work in 10 days. If Y does half of what X and Z together do in 1 day, in how many days Y alone do the complete work?
LCM of two numbers a and b is 300. How many such pair of numbers exist?
In how many ways can you write the number 210 as a product of three integers?
A die has to be labeled with numbers 1 to 6, with a number on a face, such that the numbers on none of the pair of opposite faces add up to a multiple of 3. In how many ways can this be done?
@psycho.munna @scrabbler @rdrahul please help guys?
abcd is a 4 digit number in base 7 such that 2(abcd)=bcda.Find a ?
What is the logic for this input output ques ?? Input : she was intrested in doing art film Step 1: Art she was intrested in doing film Step 2: Art was she intrested in doing film Step 3: Art was in she intrested doing film Step 4: Art was in film she intrested doing Step 5: Art was in film doing she intrested Step 5 is last step
hey puyz kindly help me with the logic of the small triangle to be 6/25th of the big triangle n the remaining triangles 7/25 th of the big triangle?
If (30! + 31! + 32! + 33! + 34! + .....99!) when divided by 4^n leaves a non-zero remainder, what is the least value of n? @Going_High @debasiscat2013 pls explain.. OA is 16.
A modification:
If BC =4 & AB=6, then find PD, by method of plane geometry. Pl give approach to the modified problem, not the original one.
Actually, the original problem is easier because the circle cuts the diagonal at the centre of the diagonal or rectangle.
http://s1.postimg.org/tyhhtay9b/635808487776684536_5164773.png
How to solve such questions - How many no.s not divisible by either 5 or 2 in (3,500) interval?
Should we do it by 500*1/2*4/5-3*1/2*4/5 method ?
I am not gettung accurate answers , please help!
How many 4 digit no.s are there with less than 6 prime factors?
You are selecting 10 numbers randomly out of the first 100 odd no.s . sum of these 10 odd no.s is A. how many different values of A are possible ?
if the roots of a quadratic equation are x^3 - ax^2 +bx -c=0 are three consecutive integers the what could be the smallest possible value of b?
A thin copper wire is wound around a cylindrical rod of circumference 2cm and length of 56cm. If the copper wire forms 45 spiral turns along the length of the rod, then find the length of the wire.
TITA .. Pls post your approach
Case 1 : ending in 1 odd and 1 even no.
Example 1 :
For interval 1 to 300 .
no.s from 1 to 300 : 300-1+1 =300
no.s between 1 and 300 : 300-1-1=298
odd no.s from 1 to 300 : total no.s from 1 to 300 /2 = 150
even no.s also 300/2=150
odd no.s between 1 and 300 : total odd no.s -1 = 300/2 -1 = 149
even no.s between = 149
Example 2 : 2 to 51
no.s from 2 to 51 : 51-2+1=50
no.s between 2 and 51 = 51-2-1=48 ( excluding 2 nos at boundary)
odd nos from 2 to 51 : 50/2
even no.s :50/2
odd nos between 2 and 51 : 25-1=24
even no.s between 2 and 51 : 24 similarly
Case 2 : Both ending in even no.s
Example 1 : 50 to 102
nos. from 50 to 102 = 102-50+1 =53
nos. between 102-50-1=51
odd nos from 50 to 102 : calculate odd no.s from 51 to 102 = 102-51+1/2=26 ( trying to convert to above case)
even nos from 50 to 102 : even nos from 50 to 101 = (101-50+1/2 )+1=27 or simply 1 more than odd no.s
odd nos between 50 to 102 = 26
even nos between = 27-2=25
case 3 : both nos are odd
similar as above just that odd > even
so find even nos first by converting 1st no. to nearest even integer greater than the no.
#Basics
Please explain further if more cases are to be taken like : no.s from x to y range neither divisible by 3 or 5 types.
Please share how you do such questions.