a dishonest shopkeeper professes to sell his articles at cost price but he uses false weights with which he cheats by 20% while buying and by 20% while selling. Find his percentage profit
Each of A,B & C needs a certain unique time to do a certain work.C needs 1hr less than A to complete the work.Working together,they require 30min to complete 50% of the job.The work also gets completed if A&B start working together while A leaves after 1hr & B works for further 3hrs. How much work C do per hr(in %) ???
A watch which gains 5 seconds in 3 minutes was set right at 7 am.In the afternoon of the same day,when it indicated quarter past 4 o'clock,the true time is?
a)59 (7/12) min. past 3
b)4 pm
c)58 (7/11) min. past 3
d)2 (3/11) min past 4
Bolt & Milkha start running around a race track simultaneously.Bolt run at a speed of 'x' kmph, while milka runs at a speed of 'y' kmph,They meet for the first time when bold is in his 3rd round.Whih of the following can be the value of x:y?
ans= 11:6
How many four digit numbers can be formed using the digits {1,2,3,4,1} such that each digit occurs at most once in every number?
Approach please
If the roots of the equation (a^2 +b^2)x^2 -2b(a+c)x+(b^2+c^2)=0
are equal then a,b,c are in
- HP
- cannot be said
- none of these
- Gp
- AP
0 voters
What is the sum of all the four-digit numbers with distinct non-zero digits such that the sum of their digits is 23?
OA:1111*23*54
Please explain the 54!
There are 10 points in a space. No four points are on the same plane except 5. Find the number of planes that can be formed.
OA:111
is there any shorter way fo solving this question ?
The sum of all the divisors of a number is 120. What is the number?
Statement 1: The number has exactly two prime factors.
Statement 2: The number is divisible by four.
How many statements are required to know the number ?
Find the number of positive, unequal and integral solutions of the equation a+b+c+d=15?
Out of 20 consecutive natural numbers, in how many ways can 4 numbers be selected, such that any two among the selected numbers differ by at least 3?
A)20C3/4
B)14C4
C)17C4
D)23C4
Kindly provide the method to solve such questions.
what is the sum of all 4 digit numbers with dstinct non zero digits, having sum of digits as 23? (average time for it was 16s acc to CRACKU.IN, not getting it though)
if anybody could explain?
- 11112336
- 11112348
- 11112354
- 11112342
0 voters
if x cosθ - sinθ = 1, then x^2 + (1 + x^2)sin θ equals:
the options are a) 0 b) -1 c) 2 d) 1
2x + 9y
256
257
125
128
1/x + 3/y = 1/29? How many ordered pairs of integers satisfy the equation for non negative value of x?.approach please..
2x + 9y x,y are non-negative integers
Number of solutions?
256
257
125
128
2x + 9yx,y are non-negative integers
Number of solutions?
256
257
125
128
Along with bullseye series which series should one join? AimCat or SimCat or CL ?
A car is travelling along a dual carriageway at constant speed. Every 3 minutes a bus passes going in the opposite direction, while every 6 minutes a bus passes the car travelling in the same direction. Buses leave the depot at regular intervals; they travel along the dual carriageway and back to the depot at a constant speed. At what interval do the buses leave the depot?
3
4
5
6