My doubt z dat nly, y v r takng dat 10% increase at 100 n nt 75 vich z d actl cost price..?
What is the number of nines used in numbeing a 453 page book?
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1 digit=9=>1 no
2 digit=>_ 9 except 9 at tens digit==> 8 nos.
2 digit=> 9_ indluding 9 at units digit=>10 nos.
3 digit -> _ _ 9=> 3*10=>30 nos wherein hindreds digit can take 1,2,3
3 digit => 4_9=> 5 nos=> 0,1,2,3,4
total=54??
kuch miss toh nahi hua??
No of factors whch r perfect sqares???
Number = 800
No of factors whch r perfect sqares???
@jashholmes said:Number = 800No of factors whch r perfect sqares???
800 = 4*25*100
= 2^4*5^4
number of factors = 25
2^2, 5^2, 2^2*5^2, 2^4, 5^4, 2^4*5^4
so total 6???
= 2^4*5^4
number of factors = 25
2^2, 5^2, 2^2*5^2, 2^4, 5^4, 2^4*5^4
so total 6???
@jashholmes said:@chandrakant.k The answer is 5!!!i dnt knw hw???
sala galat hai :sneaky:
1 4 16 25 100 400 seeda hai 😛 😛
1 kaise hoga!!!
1 thodi hota hai...it is nt considered to b a perfect square!!!
How many 4 digit numbers are divisible by 6???
@jashholmes said:1 kaise hoga!!!1 thodi hota hai...it is nt considered to b a perfect square!!!
when you reply to a particular person please quote or tag him. I am seeing your reply now :(
now y 1 is not a perfect square?
@jashholmes said:How many 4 digit numbers are divisible by 6???
the first four digit number divisble by 6 is 1002
last number is 9996
so (9996-1002)/6 + 1
= 8994/6 + 1
= 1499+1 = 1500
Name a prime number which ends with zero???
Find the sum of all 2 digits natural numbers which leave a remainder of 3 when divided by 7???
All consequtive natural numbers starting from 1 are written side by side till we write 100 digits. What is the remainder when this number is divided by 8???
@jashholmes
Please check the approach:-
Req. Sum;- (7*1 + 3) + (7*2 + 3) + (7*3 + 3).....(7*13 + 3)= (3*13) + 7*(1+2+3.....13)
Please check the approach:-
Req. Sum;- (7*1 + 3) + (7*2 + 3) + (7*3 + 3).....(7*13 + 3)= (3*13) + 7*(1+2+3.....13)
In what ratio should a shopkeeper mix almonds costing Rs 58 per kg with almonds costing Rs 66 per kg, such that by selling them at 75 per kg, the shopkeeper makes a profit of 10%???