07 Aug 2016

### NUMBERS & FUNDAMENTALS OF MATHS (PART-VII)

QUERY 61 A man bought two baskets full of mangoes for Rs 19.80 and Rs 34.65. Cost of each mango is not less than 24 paise and not greater than 36 paise. The total number of mangoes bought by him is? A) 135 B) 145 C) 155 D) 165 MAHA

13 Jul 2016

### QUESTIONS ON LCM & HCF (PART-III)

QUERY 21 There are five hobby clubs in a college. The gardening group meets every second day, the electronic group meets every third day, the chess group meets every fourth day, the cricket club meets every fifth day and the photography group meets every sixth day. How many times do

08 Jul 2016

### SUM OF SERIES, SUM OF NUMBERS AND SUM OF DIGITS (PART-III)

QUERY 21 3⁄1².2² + 5⁄2².3² + 7⁄3².4² + 9⁄4².5² + 11⁄5².6² + 13⁄6².7² + 15⁄72.82 + 17⁄8².9² + 19⁄9².10² = ? A) 1⁄100 B) 99⁄100 C) 101⁄100 D) 1 MAHA GUPTA 3⁄1².2² + 5⁄2².3² + 7⁄3².4² + 9⁄4².5² + 11⁄5².6² + 13⁄6².7² + 15⁄7².8² + 17⁄8².9² + 19⁄9².10² = 2²-1²⁄1².2² + 3²-2²⁄2².3² + 4²-3²⁄3².4²

16 Jun 2016

### SUM OF SERIES, SUM OF NUMBERS AND SUM OF DIGITS (PART-II)

SUM OF SERIES, SUM OF NUMBERS AND SUM OF DIGITS QUERY 11 Find the value of 1 × 2 + 2 × 3 + 3 × 4 + 4 × 5 + 5 × 6 + 6 × 7 + 7 × 8 + 8 × 9 + 9 × 10 +

09 May 2016

### NUMBER OF ZEROES & UNIT DIGIT (PART-II)

QUERY 11 What is the unit digit in (795 – 358)? A) 0 B) 4 C) 6 D) 7 MAHA GUPTA When there is subtraction of two numbers, we should know the unit digit of each number and subtract the second digit from the first digit. Unit digit in 795 =

09 May 2016

### NUMBERS & FUNDAMENTALS OF MATHS (PART-VI)

QUERY 51 A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7, which is divisible by 11. Then, (a + b) = ? A) 10 B) 11 C) 12 D) 15 MAHA GUPTA 4     a     3 9

08 May 2016

### QUESTIONS ON LCM & HCF (PART-II)

QUERY 11 If the sum of two numbers is 55 and the HCF and LCM of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to? A) 55⁄601 B) 601⁄55 C) 11⁄120 D) 120⁄11 MAHA GUPTA Let the numbers be a and b. Then, a

22 Aug 2014

### QUESTIONS ON LCM & HCF (PART-I)

QUESTIONS ON LCM & HCF QUERY 1 The ratio of the sum to the LCM of two natural numbers is 7:12. If their HCF is 4, then the smaller number is: A) 20 B) 16 C) 12 D) 8 RONNIE BANSAL The ratio of the sum to the LCM of

22 Aug 2014

### SUM OF SERIES, SUM OF NUMBERS AND SUM OF DIGITS (PART-I)

SUM OF SERIES, SUM OF NUMBERS AND SUM OF DIGITS QUERY 1 Find the sum of all the digits from 1 to 100 is. A) 109 B) 900 C) 901 D) 902 MAHA GUPTA Sum of digits of the numbers from 1 to 99 = 10(1 + 2 + 3

22 Aug 2014

### NUMBERS & FUNDAMENTALS OF MATHS (PART-V)

NUMBERS & FUNDAMENTALS OF MATHS (PART-V) QUERY 41 Find Value of √[1 + {√1 + (√1 …)}] A) equal to 1 B) between 0 and 1 C) between 1 and 2 D) greater than 2 ABHIK CHAKRABORTY Let y be the expression given in the bracket {  } Then the