# Quiz Discussion

A bacteria gives birth to two new bacteria in each second and the life span of each bacteria is 5 seconds. The process of the reproduction is continuous until the death of the bacteria. initially there is one newly born bacteria at time t = 0, the find the total number of live bacteria just after 10 seconds :

Course Name: Quantitative Aptitude

• 1]

$$\frac{{{3^{10}}}}{2}$$

• 2]

310 - 210

• 3]

243 × (35 -1)

• 4]

310 - 25

• 5]

None of these

##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

If the fifth term of a GP is 81 and first term is 16, what will be the 4th term of the GP?

• 1] 36
• 2] 18
• 3] 54
• 4] 24
• 5] 27
##### Solution
2
Discuss

If the sum of n terms of an A.P. be 3n2 + n and its common difference is 6, then its first term is

• 1] 2
• 2] 3
• 3] 1
• 4] 4
##### Solution
3
Discuss

The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?

• 1] -49
• 2] -44
• 3] -39
• 4] -34
##### Solution
4
Discuss

The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?

• 1] -29
• 2] -41
• 3] -47
• 4] -35
##### Solution
5
Discuss

What is the sum of the following series? -64, -66, -68, ......, -100

• 1] -1458
• 2] -1558
• 3] -1568
• 4] -1664
##### Solution
6
Discuss

What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?

• 1] 104
• 2] 140
• 3] 84
• 4] 98
##### Solution
7
Discuss

The first and last term of an A.P. is a and l respectively. If S is the sum of all the terms of the A.P. and the common difference is given by $$\frac{{{l^2} - {a^2}}}{{k - \left( {l + a} \right)}}$$   then k = ?

• 1] S
• 2] 2S
• 3] 3S
• 4] None of these
##### Solution
8
Discuss

Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is

• 1] 11
• 2] 3
• 3] 8
• 4] 5
##### Solution
9
Discuss

If the sums of n terms of two arithmetic progressions are in the ratio $$\frac{{3n + 5}}{{5n + 7}}$$   then their nth terms are in the ration

• 1]

$$\frac{{3n - 1}}{{5n - 1}}$$

• 2]

$$\frac{{3n + 1}}{{5n + 1}}$$

• 3]

$$\frac{{5n + 1}}{{3n + 1}}$$

• 4]

$$\frac{{5n - 1}}{{3n - 1}}$$

##### Solution
10
Discuss

After striking the floor, a rubber ball rebounds to 4/5th of the height from which it has fallen. Find the total distance that it travels before coming to rest if it has been gently dropped from a height of 120 metres.

• 1] 540 m
• 2] 960 m
• 3] 1080 m
• 4] 1020 m
• 5] 1120 m
# Quiz