Aptitude - Decimal Fraction - Discussion
Discussion Forum : Decimal Fraction - General Questions (Q.No. 25)
25.
How many digits will be there to the right of the decimal point in the product of 95.75 and .02554 ?
Answer: Option
Explanation:
Sum of decimal places = 7.
Since the last digit to the extreme right will be zero (since 5 x 4 = 20), so there will be 6 significant digits to the right of the decimal point.
Discussion:
14 comments Page 1 of 2.
Samreen said:
9 years ago
@Maurice.
With calculator, we get 2.445455.
2 the last digit is zero and hence it is not considered so according to question,
The digits after the decimal point are (2 + 5 = 7) => 7 and hence as the last digit is zero =>7 - 1= 6.
With calculator, we get 2.445455.
The digits after the decimal point are (2 + 5 = 7) => 7 and hence as the last digit is zero =>7 - 1= 6.
Suvendu said:
1 decade ago
Its ans will be (7), because according to rule of decimal multiplication when two decimal no are multiplied the no of digit right to decimal point is sum of the no of digit after right to decimal point in two number.
Thiyagu said:
1 decade ago
Count the places of the number after the decimal point of the given 1st number and as the same for the given 2nd number. 1st number has 2 places after decimal points and 2nd number has 5 places. Therefore 2+5=7.
SHEKHAR said:
1 decade ago
@Pranav @Anurag @Maurice @Suvendu.
Any number of zeroes at the end of a decimal number does not count. Like 2.04, 2.004 but there is no difference between 2.50 and 2.5. I hope you got it now.
Any number of zeroes at the end of a decimal number does not count. Like 2.04, 2.004 but there is no difference between 2.50 and 2.5. I hope you got it now.
(1)
Krishna said:
1 decade ago
for the 1st no. there are 2 digits after decimal
for the 2nd no. there are 5 digits after decimal
total no. of decimals = 7
req. no. of digits=(n-1)=(7-1)=6
for the 2nd no. there are 5 digits after decimal
total no. of decimals = 7
req. no. of digits=(n-1)=(7-1)=6
Maurice said:
1 decade ago
Wrong ! 5 is correct answer. Though 5*4 gives one zero, 75*4 giver 2 zeros.
Hence ans = 7-2 = 5. Check with calculator.
Hence ans = 7-2 = 5. Check with calculator.
Bittu Rana said:
3 months ago
After the decimal, there are 7 digits, but the last one is zero. So, the significant number is 6.
Uday said:
1 decade ago
95.74*0.02554 = 2.4454550 will be written as 2.445455.
So answer is 6 not 7.
So answer is 6 not 7.
Pranav said:
1 decade ago
95.74*0.02554=2.4451996.
Thus answer should be 7. Please calculate again.
Thus answer should be 7. Please calculate again.
Akiii said:
1 decade ago
95.75 * .02554 = 2.445455
we will not consider the last zero
we will not consider the last zero
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