Explanation

According to question, Or, (2A/3)=(75B/100)=(C × 6/10); A × 2/3= B × 3/4;

⇒ A/B= 9/8; And, B × 3/4= C × 3/5;

⇒ B/C= 8 : 10; Thus, A : B : C= 9 : 8 : 10.

Explanation

Let the number be x

Then,

⇔34x−13x=60

⇔5x12=60

⇔x=(60×125

)⇔x= 144

Explanation

(X/100) × (25/2) = 150

To get rid of the fraction, multiply both sides by 2:

(X/100) × 25 = 300

Now, divide both sides by 25:

X/100 = 300/25

X/100 = 12

Multiply both sides by 100 to solve for X:

X = 1200

Explanation

Principal amount (P) = Rs. 12,500

Amount after 4 years (A) = Rs. 15,500

Time (T) = 4 years

Interest (I) = A - P = Rs. 15,500 - Rs. 12,500 = Rs. 3,000

Rate of interest (R) = (I / P) × (1 / T) × 100%

= (3,000 / 12,500) × (1 / 4) × 100%

= 6%

Explanation

Let's assume the maximum marks in each subject are 100. Then, the student's total marks in the three subjects are:

75 + 80 + 85 = 240

If the marks of another subject are added, the total marks become:

240 + x (where x is the marks obtained in the fourth subject)

The average percentage cannot be less than 60% because:

• If the student scores 0 in the fourth subject, the total marks would be 240, and the average percentage would be (240/400) x 100% = 60%.
• If the student scores any marks in the fourth subject, the average percentage would be higher than 60%.

Explanation

Let the number be x.

Two-third of the number is (2/3)x.

The problem states that multiplying the number by two-third of itself gives 864, so we can set up the equation: x × (2/3)x = 864.

Simplifying the equation, we get: (2/3)x² = 864.

Multiplying both sides by 3/2, we get: x² = 864 × (3/2) = 1296.

Taking the square root of both sides, we get: x = √1296 = 36.

So, the correct answer is: 36

Explanation

Father advised me not to go out in the cold.

"Advised" is the correct verb form.

It means to give counsel or recommend an action.

Explanation

Do not make friends with selfish people.

This option correctly uses "friends" as the plural noun to indicate multiple acquaintances.

The phrase accurately conveys the message of avoiding relationships with selfish individuals.

Explanation

An adjective phrase typically comes immediately after a noun to provide more information about it.

It describes or modifies the noun.

This giving details such as size, color, or quality.

Explanation

The dog sprang upon him.

"Upon" indicates the action of the dog jumping or leaping toward the person.

It often suggesting an energetic or sudden movement.