How many five-digit numbers with distinct digits can be formed using 1, 3, 5, 7 and 9 such that '3' appears before '7'?
a. 120 b. 90 c. 24 d. 60
Ashok went to a shop to purchase a total of 71 pen, pencil and sharpener. The cost of each pen, each pencil and each sharpener is Rs 1, 2, and 3 respectively. If the cost of each pen had been Rs 6 more and that of sharpener Rs 1 less than the total worth of his purchase would have been 92 more. Instead if the cost of pencil is doubled and that of sharpener is tripled then Ashok will pay 214 more. How many pencil did he purchase?
27
29
30
23
A number is divided into 5 parts. Twice the first part, thrice the second part and four times the fourth part are equal. Twice the second part, five times the third par and six times the last part are equal. Which of the following is not equal?
The first part is divisible by 90
The sum of the third and fourth part is divisible by 23
The third part is divisible by 48
The product of last part and any of the other part is divisible by 60
4,18,x,100,180,294 which number should replace x ?
Remainder when 7^7 is divided by 2^4??
a. 8
b. 5
c. 1
d. None of These
Please Help
Company X ordered for security code to be formed for each of its employee.Codes should be designed such that each code has five characters comprising of 3 alphabets and 2 digits.If only 3 digits (1,2,3) can be used and only 2 alphabets (X,y) can be used for the codes ,then how many different codes can be formed such that repetition of the alphabets and digits are allowed?
Steps please
In a certain company the board of directors have been given the responsibilty to nominate 3 key positions(one director and two identical positions in the senior management).The board will select 1 of 10 candidates eligible to fill the position of director and 2 of 8 candidates eligible to fill 2 identical positions of senior management.How many different sets of 3 candidates are there to fill 3 key positions assuming that no candidate is eligible for director and senior management simultaneously?
Steps please
the natural number 555....5 consisting of 65 fives,is equal to:
1.5*(10^65-1/9)
2.5*(1+10^13+10^26+.....+10^65)(1+10+10^2+.....+10^12)
3.5*(1+10^5+10^10+.......10^60)(1+10+....+10^4)
- only 1 and 3
- only 2 and 3
- all three
- only 1
- only 1 and 2
0 voters
if a+b+c=21,where a,b,c are positive integers,then what is the maximum value of
(a-2)(b-3)(c+2)
- 441
- 256
- 216
- 343
- 125
0 voters
CAT 2007, there were 75 questions. Each correct answer was rewarded by 4 marks and each wrong answer
was penalized by 1 mark. In how many combinations of correct and wrong is a score of 50 possible?
plz explain. ans. is 13 ways. how?The equation x6+ 3x5– x4– 7x3– 14x2- 12x – 12 = 0 has exactly one negative root. How many complex roots
does it have?
The equation x6+ 3x5– x4– 7x3– 14x2- 12x – 12 = 0 has exactly one negative root. How many complex roots
does it have?
- 2
- 0
- 4
- 3
0 voters
The equation x6+ 3x5– x4– 7x3– 14x2- 12x – 12 = 0 has exactly one negative root. How many complex roots
does it have?
1) 0
2) 2
3) 3
4) 4 Skip
×
puys. i dnt knw the ans. plz explain method also
Bill and Clinton take the square of a certain decimal number and express it in base 5 and 6 respectively. Then Bush comes and he takes the two representations and assuming that the expressions are in base 10, adds the numbers. Which of the following cannot be the value of the unit's digit of the sum obtained?
a) 6
b) 3
c) 2
The number of values of 'x' less than 30 for which 50! – x! ends in 6 zeroes is:
a.6
b.5
c.4
d.3
e.0
The product of two numbers '231' and 'ABA' is 'BA4AA' in a certain base system (where base is less than 10), where A and B are distinct digits. What is the base of that system?
a.5
b.6
c.7
d.8
e.4
Folks- Please see the pic and help pls 😃
has the registration for FMS 2014 started ? Does it accept CAT scores or hold its separate examination?
What is the sum of the coefficients in the expansion of (1-3x+x^2)^55 ?
What is the remainder when 98^100 + 100^100 is divided by 99 ?