Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 75 77 76 78 75 77 76 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System In a division sum, the quotient is 120, the divisor 456 and the remainder 333, find the dividend? 56053 5553 50553 55053 56053 5553 50553 55053 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 120 * 456 + 333 = 55053
Number System If HKUJ means FISH, what does UVCD mean ? STAK STAM STAB STAR STAK STAM STAB STAR ANSWER EXPLANATION DOWNLOAD EXAMIANS APP STAB
Number System If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is: 88 44 40 80 88 44 40 80 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, (x + y) = 22 and x2 + y2 = 404 Now, 2xy = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80xy = 40
Number System What is the sum of all the prime numbers from 20 to 40? 120 118 117 119 120 118 117 119 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 515 660 556 720 515 660 556 720 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
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