The remainder when 30 + 31 + 32 + 33 + . . . . . . . ...
View QuestionThe remainder when 4^0 + 4^1 + 4^2 + 4^3 + …….. + 4^40 is divided by 17 is:
The remainder when 40 + 41 + 42 + 43 + ........ + 440 is divided by 17 ...
View QuestionGiven, N = 98765432109876543210 ….. up to 1000 digits, find the smallest natural number n such that N + n is divisible by 11.
a) 2 b) 3 c) 4 d) 5 Answer: d Explanation: For a no. ...
View QuestionTo write all the page numbers of a book, exactly 136 times digit 1 has been used. Find the number of pages in the book.
a) 190 b) 195 c) 210 d) 220 Answer: b Explanation: From 1- 99 ...
View QuestionIf x + y + z = 0, then x^3 + y^3 + z^3 is equal to :
If x + y + z = 0, then x3 + y3 + z3 is equal to :
View QuestionA man sells chocolates which are in the boxes. Only either full box or half a box of chocolates can be purchased from him. A customer comes and buys half the number of boxes which the seller had plus half box more. A second customer comes and purchases half the remaining number of boxes plus half a box. After this the seller is left with no chocolate boxes. How many chocolate boxes the seller had initially?
a) 2 b) 3 c) 4 d) 3.5 Answer: b Explanation: The best way ...
View Questionx is five digit number. The digit in ten thousands place is 1. the number formed by its digits in units and ten places is divisible by 4. The sum of all the digits is divisible by 3. If 5 and 7 also divide x, then x will be.
a) 14020 b) 12060 c) 10020 d) 10080 Answer: d Explanation: ...
View QuestionThe number of prime factors in the expressions 6^4 × 8^6 × 10^8 × 12^10 is:
The number of prime factors in the expressions 64 × 86 × 108 × 1210 is: a) 80
View QuestionA student got twice as many sums wrong as he got right. If he attempted 48 sums in all, how many did he solve correctly?
a) 12 b) 16 c) 24 d) 18 Answer: b Explanation: Let he has solved correctly ...
View QuestionProf. Suman takes a number of quizzes for a course. All the quizzes are out of 100. A student can get an A grade in the course if the average of her scores is more than or equal to 90. Grade B is awarded to a student if the average of her scores is between 87 and 89 (both included). If the average is below 87, the student gets a C grade. Ramesh is preparing for his last quiz and he realizes that he must score a minimum of 97 to get an A grade. After the quiz, he realizes that he will score 70, and he will just manage a B. how many quizzes did Prof. Suman take?
a) 6 b) 7 c) 8 d) 9 Answer: d Explanation: The difference between just getting an ...
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