Question 105
What does a duck do when it flies upside down? The answer to this riddle is hidden in the equation given below:
If i + 69 = 70, then i = ? If 8u = 6u + 8, then u=?
If 4a = -5a + 45, then a = ? If 4q + 5 = 17, then q = ?
If -5t - 60 = -70, then t = ? If 14s+98=100, then s = ?
If 53p+9=24, then p = ?
If 3c = c + 12, then c = ?
If 3(k + 1) = 24, then k = ?
For riddle answer: substitute the number for the letter it equals
We have,
i+69=70⇒i=70−69⇒i=1and 8u=6u+8⇒8u−6u=8⇒2u2=82⇒u=4We have, 4a=−5a+45⇒4a+5a=45⇒9a=45⇒9a9=459⇒a=5and4q+5=17⇒4q=17−5⇒4q=12⇒4q4=124⇒q=3We have, −5t−60=−70⇒−5t=−70+60⇒−5t=−10⇒−5t−5=−10−5⇒t=2and 14s+98=100⇒14s=100−98⇒14s=2⇒44s=4×2⇒s=8We have, 53p+9=24⇒53p=24−9⇒53p=15⇒35×53p=35×15⇒p=9We have, 3c−c=12⇒2c=12⇒2c2=122⇒c=6we have, 3(k+1)=24⇒3(k+1)3=243⇒k+1=8⇒k=8−1⇒k=7
By substituting the number for the letter it equals, we get