বিগত সালের প্রশ্ন ও প্রশ্ন ব্যাংক
বিসিএস, ব্যাংক, প্রাথমিক শিক্ষক ও সকল সরকারি চাকরির বিগত সালের প্রশ্ন ও অধ্যায়ভিত্তিক নির্ভুল সমাধান
Influenza (noun):
English Meaning - Flu.
Bangla Meaning - (কথ্যসংক্ষেপ flu) ইনফ্লুয়েঞ্জা।
One number = x
Another = x of 250/100 = 5x/2
According to question,
X+5x/2=98
Or, x = 28
Larger number = (5×28)/2 = 70
Let the ten's digit be x and until's digit be y.
Then, x+y = 15 and x-y = 3 or y-x = 3.
Solving x+y = 15 and x-y = 3, we get: x = 9, y = 6.
Solving x+y = 15 and y-x = 3, we get: x = 6, y =9.
So, the number is either 96 or 69.
Hence, The number cannot be determined.
Let the two numbers be 22a and 22b where a and b are co-primes.
=> 22a + 22b = 462
=> a + b = 462/22 = 21
Combinations of (a,b) are as follows:
(1,20), (2,19),(3,18),(4,17),(5,16),(6,15),(7,14),(8,13),(9,12),(10,11)
However, (3,18), (6,15),(7,14),(9,12) are not admissible as the pairs are NOT co-primes.
Thus, 6 combinations are possible. (22,440) (44,418) (88,374) (110,352) (176,286) (220,242)
HCF = 17
Let numbers are = 17x, 17y
LCM = 17xy = 714 (given)
xy = 42
Possible pairs are (1, 42), (2, 21), (3, 14), (6, 7)
Possible numbers are (17, 714), (34, 357), (51, 238), (102, 119)
but given that both numbers are of three digits
∴ numbers are = (102, 119)
∴ sum of numbers = 102 + 119 = 221