Explanation

A's rate = 1/20 job/min

B's rate = 1/30 job/min

Together rate = 1/20 + 1/30

= (3+2)/60

= 1/12 job/min

Time = 1 / (1/12) = 12 minutes

 Last updated on 12 NOV 2026

Explanation

1. Current Ages:

   • Let Zoya’s current age be $x$
   • Then, Zaid’s current age is $6x$ (since he is six times as old as Zoya).

2. The sum of Ages in 7 Years:

   • In 7 years, Zoya's age will be $x + 7$ and Zaid's age will be $6x + 7$.
   • The sum of their ages in 7 years will be $(x+7)+(6x+7)=49$.

Step 1: Formulate the Equation

x+7+6x+7=49
$$7x+14=49$$

Step 2: Solve for $x$

Subtract 14 from both sides:

$$7x=35$$

Now divide by 7:

$$x=5$$

So, Zoya’s current age is $5$ years and Zaid’s current age is:

$$6x=6\times 5=30$$

Step 3: Determine Zaid’s Age When Zoya Was Born

When Zoya was born, Zaid would have been:

$$30-5=25$$

$$Last\; updated\; on\; 12\; NOV\; 2026$$

Explanation

Every year population increase = 700

after five year population increase = 5 x 700= 3500

So intial population = 25000-3500=21500

 Last updated on 12 NOV 2026

Explanation

Rules:

1. A cannot with B = No group can have A + B together

2. C must if D = If D is in group, C must also be in group

3. E cannot with C = No group can have E + C together

B, C, D

No A+B, Has D with C, No E+C -> All rules PASS

Last verified on 17-10-2026

Explanation

Assuming “10 past 5” means 5:10:

- Time elapsed since noon = 5 hours 10 minutes = 310 minutes.

- The hour hand moves 0.5° per minute.

Formula: 30° per hour = 0.5° per minute.

• 5 hours 10 minutes = 310 minutes

• 310 × 0.5° = 155°

  Last updated 08 Nov 2026 by NA